MolGod.org supplies regulatory documentation for chemical substances: safety data sheets in the 16-section REACH Annex II structure, certificates of analysis, print-ready CLP labels, compliance review and LIMS. We supply no chemical substances of any kind — the deliverable is always a document.
Nonsensia Ltd · Company No. 15165427 · 124–128 City Road, London EC1V 2NX
EU safety data sheets, certificates of analysis and CLP labels — we issue the paperwork, not the chemical
MolGod produces regulatory documentation — safety data sheets, certificates of analysis, print-ready labels, SDS audits and LIMS. Nothing is warehoused here and no substance ever changes hands: the document is the product, which is precisely why it is built to be read line by line rather than filed and forgotten.
Sourcing is somebody else’s contract. The dossier that has to survive a customs check, a distributor’s onboarding form or an inspectorate visit is a separate deliverable — and it is the only one we make.
- 3,855 parsed ECHA Annex VI records (CLP, ATP23 table), 14 columns each — the first source for every classification we print
- 16 sections, laid out in the REACH Annex II order an inspector actually reads
- 235 CAS numbers carrying regulatory status: 224 SVHC, 55 REACH Annex XIV, 11 DSL toxic, 12 AICS, 10 TSCA, 10 UK SVHC — with sunset dates and authorisation flags
- â¬49.99 for a working draft by e-mail · â¬249.99 for a signed card within 72 hours
Browse the document catalogue Ask us to review a sheet you already hold Talk to us about a bulk dossier
Why do most EU inspections fail on the safety data sheet, not on the chemical?
‘Documentation defects — a section 2 that disagrees with the harmonised entry, a section 14 without a UN number, a section 15 that misses a candidate-list addition — are fixed with documentation work, and that is the work we do.’ It fails because section 2 of the sheet disagrees with the harmonised entry, because section 14 is missing a UN number, or because section 15 says nothing about a substance that entered the candidate list two updates ago. Those are documentation defects, and they are fixed with documentation work.
- Classification is taken from the harmonised entry first, not reconstructed from whatever the upstream sheet happened to say.
- Specific concentration limits, M-factors and acute toxicity estimates are held as data — 620 entries — instead of being copied as free text.
- Transport data (UN number, transport class, packing group) is carried for 38 CAS numbers so section 14 is filled from a list rather than from memory.
- ‘Skeletal structures are rendered from the molblock with RDKit (modules/m30-label-generator/tools/rdkit_skeletal_svg.py), not selected from a picture library.’
‘Where the numbers come from, and how you check them’ →
Which sources does a MolGod safety data sheet cite, and how do I verify a value?
; ‘What the questions look like on the page’ →
What questions does each substance page answer?
; ‘Start with a sheet you already have’ →
How do I get a free audit of a safety data sheet I already have?
; ‘Why the document is the harder half’ → jak wyzej
ECHA Annex VI is the primary source. Everything that sits beside it is cited: PubChem and the NIST Chemistry WebBook are rendered as Chicago-style references with DOI, so a reviewer can follow any value back to its origin instead of trusting the sheet. On the live benzene page that means 11 PubChem references, 4 to NIST, PubChem CID 20 and a molar mass of 78.11 g/mol — all traceable from the page itself.
- ECHA Annex VI (CLP, ATP23) — harmonised classification and labelling, 3,855 records
- SCL / M-factor / ATE set — 620 entries feeding sections 2 and 3
- SVHC candidate list, REACH Annex XIV — authorisation requirement and sunset date per CAS
- REACH Annex XVII — restriction entries relevant to placing on the market
- ADR dangerous goods — UN number, class and packing group for section 14
- PubChem · NIST WebBook — cited, with DOI, in the reference layer
What the questions look like on the page
Each substance page answers 20 substantive questions in the form a compliance officer would actually type them — “Is it on the SVHC candidate list?”, “What is the UN number?”, “Is it restricted under REACH Annex XVII?” — so the answer is findable by a person, by a procurement portal and by a language model reading on their behalf.
How much does a safety data sheet cost?
A MolGod SDS Working Draft costs â¬49.99 per substance, e-mailed as soon as it is generated; a Expert-Reviewed SDS costs â¬249.99 per substance and is delivered within 72 hours of payment.
- SDS Working Draft — â¬49.99. Generated and sent by e-mail as soon as it is ready. Built for internal review, supplier comparison and filling gaps in an existing file.
- Expert-Reviewed SDS — â¬249.99. Delivered within 72 hours, after a documented section-by-section review against the Annex II requirements by a competent person, and signed. It does not replace the safety assessment a supplier owes for its own material.
- A full LIMS deployment on the MolGod engine — â¬2,999. Documentation and product pages for 100 substances, with hosting for the shop included: draft in 7 days, the full build within 30 days of payment. Maintenance runs at â¬1,499 per year and includes refreshing up to 100 products as the lists move.
Jedno brzmienie kanoniczne wszedzie: ‘The catalogue holds 53 published substance pages, each offering both document variants; the 50-molecule starter set was chosen by regulatory fact density rather than alphabetically, and 19 of those 50 carry entries from lists beyond Annex VI.’ Format liczb ujednolicic do zapisu z separatorem: 3,855 records; â¬2,999; â¬1,499/year., including a 50-molecule starter set chosen by density of verifiable regulatory facts rather than alphabetically — 19 of those 50 carry entries from the supplementary lists.
Start with a sheet you already have
Send one existing safety data sheet to the free SDS audit. You get back a section-by-section read against the 16-section Annex II layout and the harmonised Annex VI entry: what is missing, what contradicts the harmonised classification, and which regulatory lists the substance now appears on. No obligation follows it.
Open the catalogue Submit a sheet for audit [email protected]
Who needs an EU safety data sheet prepared by a third party?
; profile: ‘The importer placing a substance on the EU market’ →
Importer: which documents do I need once the consignment clears EU customs?
; ‘The distributor extending a catalogue’ →
Distributor: how do I keep 40 new product lines compliant with SVHC and ADR data?
; ‘The laboratory manager’ →
Laboratory manager: how do I audit a binder of supplier safety data sheets?
; ‘The marketplace seller with a documentation deadline’ →
Marketplace seller: how fast can I get safety data sheets before my listings come down?
‘This page is written for four roles: the importer placing a substance on the EU market, the distributor extending a catalogue, the laboratory manager and the marketplace seller with a documentation deadline.’ All four are described below, with the exact thing we hand over.
The importer placing a substance on the EU market
The moment the consignment clears customs you are the party responsible for classification, labelling and packaging under CLP. The sheet that came with the goods was written for a different jurisdiction: OSHA-style headings, no UN number, no specific concentration limits, no M-factor, and a revision date older than the last ATP. Re-authoring it is not a formality you can delegate to the shipper.
- Classification is taken from ECHA Annex VI (CLP, table ATP23) as the first source — 3855 parsed records across 14 columns — not from the supplier PDF.
- Where a harmonised entry carries specific concentration limits, M-factors or ATE values, they are read from a 620-entry dataset rather than reconstructed by hand.
- The card follows the 16-section layout of REACH Annex II, in that order, so a reviewer finds section 2.1 where section 2.1 belongs.
- Test the output before you commit: an SDS Working Draft is â¬49.99, delivered to your inbox as soon as it is generated. The Expert-Reviewed SDS is â¬249.99 within 72 hours.
The distributor extending a catalogue
Forty new lines mean forty safety data sheets, forty label artworks and forty chances that a CAS moved onto the candidate list since you last checked. Sunset dates and authorisation requirements do not send notifications, and a label that disagrees with the transport paperwork is found by the first inspector who looks at both.
- Regulatory status is resolved per CAS against a stored list set: 235 CAS covering SVHC (224), REACH Annex XIV (55, with sunset date and authorisation flag), TSCA (10), UK SVHC (10) — the post-Brexit divergence is tracked separately — plus DSL toxic (11) and AICS (12).
- REACH Annex XVII restrictions are held as their own dataset, so “restricted” is a lookup with an entry behind it, not an opinion.
- ADR transport data for 38 CAS — UN number, transport class, packing group — which is what makes the label and the consignment note say the same thing.
- Print-ready label artwork is ‘Print-ready label artwork is generated from the stored classification for that CAS — the same record the card is built from.’.
The laboratory manager
The binder is where an audit starts. Sheets arrive in four formats from four suppliers, half of them undated in any defensible way, and the container label rarely matches the document that is supposed to describe it. Meanwhile the LIMS tracks samples and instruments and has no document layer at all.
- A free SDS audit tells you which sheets in your existing binder are stale, mis-formatted or contradicted by the harmonised entry — start at /free-sds-audit/.
- Every card is one revision, one date, one file, in one 16-section structure across every substance in the binder.
- Public product pages carry Chicago-style citations with DOI back to PubChem and the NIST Chemistry WebBook, so a figure you quote to an inspector has a source you can open in front of them.
- We also build and run the LIMS layer, so sample records and the document set stop being two disconnected systems.
The marketplace seller with a documentation deadline
The platform sent a date. On that date the listings come down unless every line carries a current safety data sheet in an acceptable format. You have days, a spreadsheet of CAS numbers, and no one to hand it to.
- Start with the CAS numbers the platform flagged. The â¬49.99 Working Draft is generated and e-mailed as soon as it is ready — you have a document to work from the same working day.
- The â¬249.99 Expert-Reviewed SDS follows within 72 hours, reviewed against Annex II by a competent person before signature.
- Both variants sit side by side on every product page, so you can buy the draft now and the signed card for the same substance a day later without re-entering anything.
- Browse what already exists at /shop/ — 53 products are published, including a 50-molecule starter set selected by density of available regulatory facts rather than alphabetically.
One boundary, stated plainly: Nonsensia Ltd does not sell, supply, store or ship any chemical substance. What we deliver is a document — the safety data sheet, the certificate of analysis, the label artwork, the regulatory dossier and the system that keeps them current.
‘Your own documented catalogue in 30 days’
Your own documentation catalogue, run by your company and built on the MolGod.org engine: 100 product listings, each with its own documentation, its own product page and its own label artwork. Hosting of the site is included. â¬2,999, one payment.
What we need from you
One spreadsheet. One row per product, five columns:
- Molecule name — exactly as you want it to appear on the page and on the label.
- CAS number — the identity key. Everything downstream (harmonised classification, candidate-list status, Annex XIV entry, Annex XVII restriction, UN number, citations) is resolved from this one field.
- Purity figure you declare — your own declaration about your own material, published in your shop under your company’s name. MolGod does not verify, test, hold or handle the material behind it.
- Pack size — every gramme or millilitre variant you intend to list, each on its own row.
- Price per pack — in the currency the shop will run in.
That is the entire input. You do not write a line of safety data sheet text, you do not commission structure drawings, ‘You do not write a line of safety data sheet text, you do not commission structure drawings and you do not configure hosting or the shop software. Ongoing upkeep is a separate maintenance subscription — â¬1,499 per year, including a refresh of up to 100 products.’. These five columns are your commercial figures for your own material; we render them into documents and product pages and never handle, hold or move the material itself.
What gets built
- 100 products, each offering two purchasable variants side by side — Working Draft and Expert-Reviewed SDS.
- A 16-section safety data sheet per REACH Annex II for every product.
- A product page carrying 20 substantive sections written as the questions buyers and inspectors actually ask — “Is X on the SVHC candidate list?”, “What is the UN number for X?”, “Is X restricted under REACH Annex XVII?” — each answered from the stored regulatory data for that CAS.
- A skeletal structure rendered with RDKit from the molblock (Chem.MolFromMolBlock, rdDepictor, rdMolDraw2D), not a stock picture pulled off a search engine.
- Classification first-sourced from ECHA Annex VI, table ATP23, with SCL, M-factor and ATE values applied where the harmonised entry carries them.
- ADR transport fields — UN number, class, packing group — wherever the CAS is covered.
-
What does a print-ready CLP label from MolGod include?
A MolGod CLP label carries the product identifier, the supplier name and address, nominal quantity, GHS pictograms, signal word, the full H and P statements and any EUH statements, generated from the same harmonised classification as the safety data sheet. Files are delivered as print-ready PDF and SVG at the label dimensions required by CLP Article 17 and Annex I for the package size.
- Chicago-style citations with DOI to PubChem and the NIST Chemistry WebBook on the public page.
- Hosting included in the â¬2,999.
Timeline
- Day 0 — payment clears and your spreadsheet arrives.
- Day 7 — the draft shop is up: real products, real cards, real pages. You review it against your own catalogue and tell us what is wrong.
- Day 30 — the complete shop is live, all 100 products, documentation and labels in place.
Price
- â¬2,999 — one-off. Complete documentation catalogue of your own, built on the MolGod engine and running on your domain under your company — documentation and pages for 100 substances, hosting included.
- â¬1,499 per year — maintenance subscription, including a refresh of up to 100 products as classifications, list entries and regulatory data change.
- â¬49.99 — a single SDS Working Draft, e-mailed as soon as it is generated, if you want to see the output before committing to a catalogue.
- â¬249.99 — a single Expert-Reviewed SDS, within 72 hours.
What we do not claim
- We describe our process, not your outcome: cards are reviewed against the Annex II structure by a competent person before signature. Regulatory acceptance in your specific placing-on-the-market situation remains a matter between you and your authority.
- A card from us does not replace the safety assessment you owe as a supplier of the material. It gives that assessment a documented, sourced foundation.
- We do not sell, supply, ship or hold chemical substances. The material is yours; the documentation is ours.
See the engine working before you buy anything: browse the catalogue at /shop/. Already have sheets and want to know what is wrong with them: request the free SDS audit. Ready with your spreadsheet, or want to discuss a catalogue larger than 100 products: contact us or write to pure@molgod.org.
Nonsensia Ltd, Company No. 15165427, 124-128 City Road, London EC1V 2NX, England, United Kingdom.
How the MolGod Engine builds a sheet
No — no language model assigns a hazard class in a MolGod safety data sheet. The fact layer and the language layer are separate systems.
- Regulatory values are read from parsed reference sets and carried into the sheet unchanged.
- Language is only ever wrapped around a value that already exists.
- A model never decides a hazard class, never fills a missing field and never rounds a number.
is a language model inventing these hazard statements? On MolGod it is not, and the reason is architectural rather than editorial. The fact layer and the language layer are separate systems. Regulatory values are read from parsed reference sets and carried into the sheet unchanged. Language is only ever wrapped around a value that already exists. ‘Regulatory values are looked up in the parsed reference sets: ECHA Annex VI (3855 records, 14 columns), the SCL/M-factor/ATE set (620 entries), the regulatory status set (235 CAS) and the ADR set (38 CAS). Those sets are what the sheet prints.’
Does an AI write the hazard statements in an automated safety data sheet?
Every statement in a MolGod document belongs to exactly one of two layers, and the layers do not swap roles.
- The fact layer owns every field a regulator checks:
- harmonised classification (ECHA Annex VI)
- H and P statement codes
- specific concentration limits (SCL)
- M-factors
- acute toxicity estimates (ATE)
- UN number, transport class, packing group
- SVHC candidate-list and Annex XIV authorisation status
- Annex XVII restriction entries
- identifiers (CAS, EC, PubChem CID) and molar mass
These are looked up.
- The language layer owns sentence construction only: ordering, phrasing, translation of a stored value into a readable line, and the wording of the question-shaped sections on the product page. It receives values it is not permitted to alter, and it has no authority to introduce a regulatory fact that the fact layer did not supply.
These are looked up. Fields are populated from the reference sets named above; where a set has no entry for a CAS, the sheet states that no entry was found.
This is why a gap in a MolGod sheet reads as a gap. Plausible-looking text in place of a missing value is the single most expensive failure mode in generated documentation, and the way to prevent it is not a better prompt — it is denying the model access to the field in the first place.
The priority chain, in order of authority
- ECHA Annex VI harmonised classification — first source, always, and it overrides everything below it.
- PubChem and NIST WebBook — physicochemical validation and the Chicago-style citation layer with DOI.
- RDKit — ‘molblock parsing, 2D coordinate generation and skeletal rendering’.
- Human review — applied to the Expert-Reviewed SDS before release.
1. ECHA Annex VI harmonised classification — always first
Harmonised classification under CLP is a legal minimum, not one opinion among several, so it enters the chain ahead of any aggregated or consensus source. MolGod carries the full parsed table: 3855 records across 14 columns, taken from the CLP Annex VI table at ATP 23. Where a substance has a harmonised entry, that entry sets the classification and any lower-authority source is used only for fields Annex VI does not cover.
- Harmonised entries are applied as stored values — hazard classes and statement codes are not re-derived from underlying study data.
- 620 entries in
clp_annex_vi_scl_mfactor.jsoncarry specific concentration limits, M-factors and acute toxicity estimates. These are the values that decide at what concentration a mixture inherits a classification, and they are the fields most often absent from a sheet copied forward from an older revision. - Restriction entries from
reach_annex_xvii.jsonare checked as a separate condition, because a substance can be unrestricted in classification terms and still be restricted in a specific use.
2. PubChem and NIST WebBook — validation and a citation that can be checked
Physicochemical and identifier values carry a citation that travels with them. includes/class-chicago-citation.php generates Chicago-style citations with DOI, so a reviewer can open the record that produced a number instead of taking the sheet’s word for it.
A citation is not decoration. It is the difference between a document you can defend in an inspection and a document you can only assert. On the live benzene page, physicochemical values carry PubChem and NIST WebBook references, rendered as Chicago-style citations with DOI.
3. RDKit — the structure is parsed, not assumed
Skeletal structures are rendered by RDKit in modules/m30-label-generator/tools/rdkit_skeletal_svg.py, using Chem.MolFromMolBlock, rdDepictor and rdMolDraw2D. The sequence matters:
Chem.MolFromMolBlockparses the molblock. A structure record that fails to parse is a structure record that does not reach a label — .rdDepictorcomputes 2D coordinates from the parsed molecule, so the depiction follows the connectivity actually stored for that substance.rdMolDraw2Drenders the SVG that goes on the label and the product page. The image is generated from the molecule record; it is not selected from a picture library and matched by name.
4. Human review before a Expert-Reviewed SDS is released
The two products are deliberately distinguished, and the distinction is stated on the document itself.
- SDS Working Draft — â¬49.99, e-mailed as soon as the engine completes it. Machine-assembled, labelled a working draft, intended for internal review, gap analysis and preparation.
- Expert-Reviewed SDS — â¬249.99, within 72 hours. The assembled document is reviewed by a competent person against the 16-section layout required by REACH Annex II before signature. What is offered here is a defined review process with a named reviewer and a fixed turnaround — a description of what happens to the document, not a promise about how any authority will later treat it.
Both variants are listed side by side on every molecule in the document catalogue, so the choice between draft and signed is made per substance rather than per account.
‘The reference sets behind the answers’ →
Which regulatory datasets is a MolGod safety data sheet built from?
; ‘The priority chain, in order of authority’ →
Which source wins when ECHA, PubChem and the supplier sheet disagree?
; ‘What is live today’ →
How many substances are published in the MolGod catalogue today?
; ‘Where the sheet stops’ →
What does MolGod not do — do you supply chemicals or replace my chemical safety assessment?
Trust in generated documentation is a function of how much of it is lookup. These are the sets a MolGod sheet is built from, with their sizes as measured in the current build:
- Annex VI harmonised classification — 3855 records, 14 columns. Parsed CLP Annex VI table, ATP 23.
- Regulatory status — 235 CAS numbers in
regulatory_status_seed.json: SVHC candidate list 224, REACH Annex XIV authorisation list 55, TSCA 10, UK SVHC 10, DSL toxic 11, AICS 12. Memberships overlap, so a single CAS commonly carries several. Entries holdsunset_dateandauthorisation_required, which is what turns a list membership into a date you have to plan against. - SCL, M-factor and ATE — 620 entries in
clp_annex_vi_scl_mfactor.json. The values that govern mixture classification thresholds. - ADR dangerous goods — 38 CAS numbers in
adr_dangerous_goods.json, each with UN number, transport class and packing group. - REACH Annex XVII restrictions in
reach_annex_xvii.json, evaluated as a condition independent of classification.
What the product page exposes, and why it is written as questions
Each molecule page carries 20 substantive sections, each stated as a question a compliance officer actually asks, with the answer resolved from the sets above rather than composed:
- Is this substance on the SVHC candidate list?
- What is the UN number for this substance?
- Is this substance restricted under REACH Annex XVII?
A question with a sourced answer is auditable. A paragraph of prose describing the same thing is not.
What does a finished MolGod page look like? Benzene (CAS 71-43-2, EC 200-753-7) as measured
— i w tresci: ‘Benzene, CAS 71-43-2, EC 200-753-7, PubChem CID 20, molar mass 78.11 g/mol.’
Counted on the live benzene page (CAS 71-43-2): 11 references to PubChem and 4 to the NIST Chemistry WebBook, plus PubChem CID 20, and a molar mass of 78.11 g/mol. That density is the whole argument: every one of those values is printed with its source rather than asserted.
What is live today
53 products are published, including a 50-molecule starter set selected by fact density rather than alphabetically — the molecules chosen first are the ones where the reference sets have the most to say. 19 of those 50 carry data from the supplementary regulatory lists, meaning candidate-list, authorisation, transport or restriction status on top of the harmonised classification.
Where the sheet stops
MolGod produces documentation: safety data sheets, certificates of analysis, print-ready labels, LIMS integration and SDS audit. No substance of any kind forms part of what is offered. Equally, a sheet from this engine supports your own safety assessment and does not stand in for it — the duties that sit with a manufacturer, importer or downstream user remain where the regulation put them.
Test the chain on a molecule you already handle
- Free SDS audit — send a sheet you are already using and get back what the reference sets say about it, field by field.
- Browse the document catalogue — Working Draft at â¬49.99 and Expert-Reviewed SDS at â¬249.99, listed together on every molecule.
- Talk to us about a Complete LIMS deployment built on MolGod.org — 100 products with hosting included at â¬2,999, draft in 7 days and the full shop within 30 days of payment, maintained at â¬1,499 per year including a refresh of up to 100 products.
SDS Working Draft vs Expert-Reviewed SDS
Both deliverables are documents. MolGod authors safety data sheets, certificates of analysis, print-ready labels and LIMS records — no chemical substance forms part of any order. The two variants differ in one thing: whether a competent person has read the sheet before it leaves us.
SDS Working Draft
â¬49.99
- Automated, no queue. ‘The generator runs on payment and the sheet is e-mailed as soon as it is ready.’ — i identycznie w profilu marketplace sellera. — nothing waits for a working day.
- Complete 16-section layout in the order set by REACH Annex II, from Section 1 identification to Section 16 other information. No section is dropped for being thin; a section without data says so.
- Classification resolved against ECHA Annex VI to CLP (harmonised table, ATP23 — 3,855 parsed entries held locally). Where the CAS carries a harmonised entry, that entry wins over any calculated consensus; where it does not, the sheet states that instead of inferring one.
- Specific concentration limits, M-factors and ATE values come from the parsed Annex VI SCL/M-factor set (620 positions), so mixture arithmetic starts from the legal figure and not from a generic default.
- Skeletal structure drawn by RDKit from the connection table (
Chem.MolFromMolBlock→rdMolDraw2D), not a stock picture pasted in. - Sourced values carry Chicago-style citations with DOI pointing to PubChem and the NIST Chemistry WebBook, so a reviewer can open the record a number came from instead of trusting the sheet.
- Made for internal work: hazard review, pre-filling your own template, checking what you already hold on file. It is unsigned and is not meant to leave your organisation.
Expert-Reviewed SDS
â¬249.99
- Everything in the Working Draft, then read line by line by a competent person in the sense of REACH Annex II, Part A, before the file is released.
- 72 hours, counted from payment — not “a few days”. If the review raises a question about your intended use, we ask before we sign.
- GHS block verified by hand: hazard class and category, H-statements, signal word, pictogram set and the precautionary selection, checked against the harmonised entry where one exists.
- Transport data checked item by item — UN number, transport class, packing group — against the parsed ADR dangerous-goods set. ‘Where the CAS is not in that dataset, section 14 states that no entry was found in our transport source and that the classification has to be confirmed against ADR/RID/IMDG/ICAO-IATA for the intended mode.’
- Regulatory status cross-read against the list set in the database: SVHC candidate list (224 CAS), REACH Annex XIV authorisation list (55, with sunset date and authorisation requirement), Annex XVII restrictions, TSCA, UK SVHC, DSL toxic and AICS — 235 CAS in total.
- Built to travel down the supply chain: This is the variant intended for release outside your organisation: a document carrying a review date and a documented Annex II review. Intended use: release outside your organisation.
- What the signature records. A documented review against Annex II and the harmonised classification — a process, not a statement about your operation. The sheet still has to be read against your own use, your own exposure scenario and your own chemical safety assessment; it does not stand in for them.
SDS Working Draft vs Expert-Reviewed SDS: what is the difference?
; analogicznie ‘Not sure which one?’ →
Which SDS variant should I order — the â¬49.99 draft or the â¬249.99 signed card?
| Criterion | SDS Working Draft — â¬49.99 | Expert-Reviewed SDS — â¬249.99 |
|---|---|---|
| Turnaround | Same session, automated | Within 72 hours of payment |
| Structure | 16 sections, REACH Annex II | 16 sections, REACH Annex II |
| Classification source | ECHA Annex VI (CLP, ATP23), applied automatically | Same source, GHS block re-read by hand |
| UN number, class, packing group | Populated from the ADR set where the CAS is listed | Verified entry by entry before signature |
| Signature and review date | None | Signed by the reviewing competent person |
| Intended use | Internal hazard review, filling your own template | Passing to customers, carriers and compliance desks |
Both variants sit side by side on every product page. The catalogue holds 53 published document sets — one per substance — including a 50-molecule starting set chosen by how much regulatory data actually exists for each one rather than alphabetically — 19 of the 50 carry entries from lists beyond Annex VI. Each page answers 20 questions in the form an auditor asks them: Is this substance on the SVHC candidate list? What is its UN number? Is it restricted under REACH Annex XVII?
Regulatory reference
SDS, CLP and EU import questions, answered against the text of the regulation
‘Where an answer rests on a specific article or annex, that provision is named, so you can check it instead of trusting us.’ Where the honest answer is it depends on the use, that is what it says — an invented rule is worse than an open question when an inspector arrives.
MolGod builds the documents: safety data sheets, certificates of analysis, print-ready labels, LIMS records and audits. Nothing on this page is an offer of a chemical substance.
How often must a safety data sheet be updated?
, plus nad lista
What documents do I need to import a chemical substance into the EU?
An EU importer inherits the duties of a manufacturer. The file that enforcement authorities ask for is:
- a REACH registration at or above one tonne per year per legal entity, or an Only Representative appointed under Article 8 by the non-EU producer;
- a CLP classification matching Annex VI, Table 3 wherever a harmonised entry exists;
- a safety data sheet in an official language of every Member State where the material is placed on the market;
- a CLP label with the correct pictograms, signal word and H/P statements;
- Dwa nowe elementy FAQ:
Do I need a UFI and a poison centre notification for my mixture?
A UFI and a poison centre notification under CLP Annex VIII are required for every mixture classified for health or physical hazards placed on the EU market. The UFI belongs in subsection 1.1 of the safety data sheet and on the label.
oraz
Do you produce safety data sheets for mixtures, or only for single substances?
z jednoznaczna odpowiedzia tak/nie i cena.
Customs clearance tests none of this. The chemical file is checked by national inspectors, usually long after the goods have reached your warehouse.
Who is legally allowed to write or sign a safety data sheet in the EU?
REACH Annex II, point 0.2.3, requires the sheet to be compiled by a competent person who has received appropriate training, including refresher training. There is no EU licence, register or examination for that role — and Annex II does not require a signature at all. What carries the accountability is a named contact in subsection 1.3, a version number and a revision date in section 16.
Our Expert-Reviewed SDS records a documented review against the Annex II structure by a competent person. It evidences the process; it does not move your own duty as the party placing the material on the market.
How often must a safety data sheet be updated?
‘A safety data sheet must be updated without delay under REACH Article 31(9) — there is no calendar interval and no three-year rule. The trigger is new information on hazards or risk management, an authorisation granted or refused, or a restriction imposed; the revised version must then reach every recipient of the previous twelve months, free of charge.’ REACH Article 31(9) triggers an update without delay when new information on hazards or risk management becomes available, when an authorisation is granted or refused, or when a restriction is imposed — and the revised version must reach every recipient of the previous twelve months, free of charge.
The most frequent real-world trigger is an adaptation to technical progress (ATP) to CLP Annex VI. When the harmonised entry moves, sections 2, 3, 15 and 16 move with it.
Is a safety data sheet required for a laboratory sample or a small research quantity?
‘A safety data sheet is required for a laboratory sample or a small research quantity whenever the substance is classified as hazardous. REACH Article 31(1) sets no tonnage threshold and no minimum quantity: a 5 g vial for method development and a 200 kg drum carry the same hazard communication duty.
What is an extended safety data sheet (e-SDS) and when do I need exposure scenarios?
An extended safety data sheet is required when a substance is registered at 10 tonnes or more per year per legal entity and a chemical safety report has been prepared: the relevant exposure scenarios are annexed to the sheet under REACH Article 31(7). MolGod produces the 16-section core document; exposure scenarios come from your own chemical safety assessment and are annexed to it.
The two obligations are independent and are frequently conflated.
Do I need an SDS for a substance that is not classified as hazardous?
‘A safety data sheet is not automatically required for a substance that is not classified as hazardous, but the exceptions under REACH Article 31(3) are wide. Article 31(3) requires one, on request from a downstream user or distributor, for mixtures that are not classified yet contain:’ Article 31(3) requires one, on request from a downstream user or distributor, for mixtures that are not classified yet contain:
- ≥ 1% by weight (≥ 0.2% by volume for gases) of a substance hazardous to human health or the environment;
- ≥ 0.1% of a PBT, vPvB or candidate list substance;
- any substance with an EU workplace exposure limit.
Where no sheet is required at all, Article 32 still obliges you to pass registration numbers, authorisation status and restriction conditions down in writing.
What happens if my safety data sheet is in the wrong language?
‘A safety data sheet in the wrong language is a non-conformity in its own right, whatever the technical content says. REACH Article 31(5) requires the document in an official language of each Member State where the material is placed on the market, unless that Member State provides otherwise.
In which languages do you deliver the safety data sheet?
A MolGod safety data sheet is delivered in seven languages — German, English, French, Italian, Dutch, Polish and Chinese — with hazard class names, H and P statements and section 14 entries taken from the official CLP wording in each language rather than translated freely. One language is included in the â¬249.99 Expert-Reviewed SDS. Ask before ordering if you need the document in more than one language.
Translation is not a text job either: hazard class names, H and P statements and section 14 entries have fixed official wording in each EU language, and a free-form rendering of them reads to an inspector as an error. Settle the language question for every destination market before the document leaves your desk, not after a customer rejects the paperwork.
What is the difference between a safety data sheet and a certificate of analysis?
They answer different questions and neither substitutes for the other. The safety data sheet is a hazard communication instrument required by REACH Article 31 — classification, exposure controls, first aid, transport, disposal — and it describes the substance in general.
A certificate of analysis is a quality record for one identified batch: the values obtained, the test methods used, the date of analysis. REACH does not require it; customers, auditors and tender documents routinely do. In short, the SDS states what the substance can do to people and the environment, the CoA states what one batch measured on one day.
What are the 16 sections of a REACH Annex II safety data sheet?
Annex II prescribes the order, the headings and the subsection numbering:
- Identification of the substance or mixture and of the company
- Hazards identification
- Composition / information on ingredients
- First aid measures
- Firefighting measures
- Accidental release measures
- Handling and storage
- Exposure controls / personal protection
- Physical and chemical properties
- Stability and reactivity
- Toxicological information
- Ecological information
- Disposal considerations
- Transport information
- Regulatory information
- Other information
A document that merges, renumbers or drops a heading is non-compliant even when every fact inside it is correct — which is why an audit starts with structure and only then looks at chemistry. Every entry in the catalogue is built on this layout.
Does my safety data sheet still meet the 2020/878 format?
Commission Regulation (EU) 2020/878 rewrote Annex II and has been mandatory for every sheet on the EU market since 1 January 2023.
Four visible tells of a safety data sheet that predates 2020/878:
- No UFI in subsection 1.1 for a hazardous mixture.
- No nanoform particle characteristics where nanoforms apply.
- No endocrine disrupting properties under subsections 2.3, 11.2 and 12.6.
- A section 3 without SCLs, M-factors or ATEs where the harmonised Annex VI entry sets them.
That last gap is the common one. We hold 620 parsed entries carrying SCLs, M-factors and ATEs, which is exactly what section 3 needs to be complete. Send an existing document through the free SDS audit and you get the gap list back.
What is a substance of very high concern, and what does the candidate list oblige me to do?
SVHC status is defined by REACH Article 57: CMR category 1A or 1B, PBT, vPvB, or an equivalent level of concern — the route through which respiratory sensitisers and endocrine disruptors are listed. Once ECHA adds a substance to the candidate list, duties follow, including information to recipients under Article 33, and a SCIP notification for articles containing it above 0.1% w/w under Article 9(1)(i) of the Waste Framework Directive.
The list is extended roughly twice a year, so “we checked it once” is not a control. Our regulatory dataset carries 235 CAS numbers across these lists — 224 SVHC, 55 REACH Annex XIV, 11 DSL toxic, 12 AICS, 10 TSCA and 10 UK SVHC — with sunset dates and authorisation flags attached.
What does a sunset date under REACH Annex XIV mean for my planning?
Annex XIV is the authorisation list. After the sunset date, using the substance or placing it on the EU market is prohibited unless an authorisation has been granted for that specific use, or an exemption applies — scientific research and development being the usual one.
The date that actually constrains you is the earlier one: the latest application date, normally 18 months before sunset. Apply before it and you may continue while ECHA processes the decision; miss it and there is no bridge. Both dates belong in section 15, and both sit in our dataset for the 55 Annex XIV entries.
Is my substance restricted under REACH Annex XVII?
‘Whether a substance is restricted under REACH Annex XVII can only be answered once the intended use is named. Annex XVII restrictions are entry-based conditions on manufacture, placing on the market or use.’ Annex XVII restrictions are entry-based conditions on manufacture, placing on the market or use: entries 28 to 30, for example, block substances classified CMR 1A or 1B from being made available to the general public above the relevant concentration, while other entries bite on a single article type, a single concentration or a single application.
So the check is a three-part match — substance identity, concentration, intended use. Section 15 has to name the applicable entry, not merely repeat that Annex XVII exists.
Where do the UN number and transport class on a safety data sheet come from?
Section 14 of a safety data sheet carries: UN number; regulated transport name; hazard class and classification code; packing group; environmental hazard; tunnel restriction code (road only).
- Road — ADR
- Rail — RID
- Sea — IMDG
- Air — ICAO TI / IATA DGR
The same substance can fall into different regimes by mode, and a not-dangerous-goods result must be stated explicitly rather than left blank.
The same substance can fall into different regimes by mode, and a not-dangerous-goods result has to be stated explicitly rather than left blank.
Our transport dataset covers 38 CAS numbers with UN number, transport class and packing group. Where a substance sits outside it, the section says so instead of guessing.
What is harmonised classification, and can I classify a substance differently?
Where a substance has an entry in CLP Annex VI, Table 3, that classification is mandatory for the hazard classes the entry covers; Article 4(3) leaves you self-classification only for the classes it does not address. Where an entry states a minimum classification, a stricter category applies if your data supports it — a softer one never does, and a non-EU producer’s document is not grounds to depart from it.
MolGod treats Annex VI as first source. The ATP 23 table is parsed in full: 3,855 records across 14 columns, consulted before any secondary source.
Can I reuse a US or Asian GHS safety data sheet in the EU?
‘A US OSHA HazCom or Asian GHS safety data sheet cannot be reused in the EU as it stands. The structure looks familiar because every regime descends from the UN GHS purple book, but the legal content does not transfer:’ The structure looks familiar because every regime descends from the UN GHS purple book, but the legal content does not transfer:
- Hazard classes and EUH statements that OSHA HazCom does not use.
- EU workplace exposure limits in section 8.
- REACH registration numbers and EU legislation in section 15.
- 2020/878 subsection numbering, not the OSHA layout.
- Language rule of REACH Article 31(5) — an official language of each Member State of placing on the market.
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Reformatting a US document into 16 EU headings without re-deriving the classification produces a sheet that survives a glance and fails an inspection. The free SDS audit tells you which of the two you are holding.
Does an EU safety data sheet still work in Great Britain after Brexit?
Great Britain runs UK REACH and GB CLP, with its own mandatory classification and labelling list and its own candidate list maintained by HSE rather than ECHA. The document must be in English and cite GB legislation in section 15. Northern Ireland continues under EU rules through the Windsor Framework, so one “UK” requirement is in practice two documents.
An EU sheet is a sound starting point for a GB one and never a substitute — which is why we hold the UK SVHC entries as a separate list rather than folding them into the EU one.
How long do I have to keep superseded versions of a safety data sheet?
REACH Article 36 requires you to assemble and keep available all the information you need to fulfil your duties for at least ten years after you last manufactured, imported, used or placed the substance on the market. Superseded versions are part of that record: they are the evidence of what a recipient was told at the time.
The practical half is version control in section 16 — a version number, a revision date and a statement of what changed. Archive the earlier PDFs, not only the current one.
These answers paraphrase the cited legislation as it stands on 25 August 2026. The binding text is the regulation itself; this is not legal advice.