chloroform (CAS 67-66-3) — Safety Data Sheet

Regulatory paperwork for CAS 67-66-3 (chloroform), written against REACH Annex II and the harmonised classification in force. MolGod issues the documentation and does not supply chemicals.

chloroform (CAS 67-66-3) at a glance

• Substance – chloroform
• CAS number – 67-66-3
• EC number – 200-663-8
• CLP Annex VI index number – 602-[CAS?]
• Also known as – trichloromethane
• Hazard statements – H351 (suspected of causing cancer); H361d; H331 (toxic if inhaled); H302 (harmful if swallowed); H372 (causes damage to organs through prolonged or repeated exposure); H315 (causes skin irritation)
• Hazard classes – Carc. 2, Repr. 2, Acute Tox. 3, Acute Tox. 4, STOT RE 1, Skin Irrit. 2
• Label pictograms – GHS06, GHS08
• Signal word – Danger
• Entry current as of – ATP05
• CMR classification – not classified as CMR in the harmonised entry
• Documentation issued – safety data sheet in REACH Annex II structure; working draft or signed card
• What is supplied – a document. MolGod.org does not sell, supply or ship chemical substances.

What is the CLP classification of chloroform?

The harmonised classification for CAS 67-66-3 carries 7 hazard statements: H351, H361d, H331, H302, H372, H315, H319. In plain terms this means suspected of causing cancer; H361d; toxic if inhaled; harmful if swallowed. A harmonised entry is binding across the Union — an importer may not soften it, and a self-classification that diverges from it will not survive an enforcement check.

Storage and handling in the document

Section 7 of the sheet for chloroform sets out handling and storage: incompatible materials, conditions to avoid, and any segregation the classification implies. Laboratories reading this section want a specific instruction, not a caution — an entry that says only ‘store in a cool dry place’ leaves the storekeeper to invent the rest.

What is the UN number for chloroform?

For carriage, chloroform is assigned UN 1888, transport class 6.1, packing group III. These entries belong in section 14 of the safety data sheet and must match the shipping papers exactly. A consignment where the sheet and the transport document disagree on the UN number is stopped before anyone reads the remaining fifteen sections.

Other names for this substance

The same substance appears in trade and in the literature under several names: trichloromethane. A safety data sheet has to carry the name used in the harmonised entry, but a purchase order, a customs declaration and a certificate of analysis may each use a different one. Where the names diverge, CAS 67-66-3 is the identifier that reconciles them — and a document set that relies on trade names alone will eventually be read as describing three different materials.

First-aid content and why it is read first

The first-aid information for CAS 67-66-3 must be understandable and actionable by someone without a chemistry background when following instructions under time pressure. Section 4 includes additional notes intended for medical professionals, where the classification’s clinical relevance is detailed.

What must the label for chloroform contain?

The supply label for chloroform is generated from the same classification that drives the safety data sheet: pictograms selected by precedence, one signal word derived from the highest hazard class present, and the hazard statements H351, H361d, H331… reproduced in full. Where the container is too small to carry the complete set at a legible size, there are lawful ways to handle it and unlawful ones that look identical to a non-specialist.

Where is regulatory status recorded for chloroform?

Section 15 documents the regulatory status for chloroform, detailing its inclusion on candidate lists, whether it is subject to authorisation or restriction, along with any applicable national regulations. This information is frequently requested by downstream users; providing a concise summary in a single document eliminates repetitive email exchanges with each customer.

What do customs check when importing chloroform?

When a consignment of chloroform is stopped at the border, the document examined first is rarely the invoice. It is section 14 of the safety data sheet and its agreement with the transport papers. A missing packing group, an absent UN number or a proper shipping name that contradicts the classification of CAS 67-66-3 will hold the pallet regardless of how complete the remaining fifteen sections are.

Accidental release and containment

A spill of CAS 67-66-3 is handled from section 6, which has to state the containment material and the protective equipment needed to approach. A sheet that describes cleanup without stating what to wear while doing it is incomplete.

Which SDS sections decide whether a shipment clears?

The sixteen sections in Annex II are not merely a formatting requirement; each section serves a specific purpose, and inspectors evaluate them sequentially. For the CAS registry number 67-66-3, key sections for acceptance typically include 2 (harmonised entry classification), 3 (composition and identifiers), 14 (transport) and 15 (regulatory status). It is crucial not to merge, renumber or omit any sections, as placeholders must remain unchanged.

Identifiers that must agree

CAS 67-66-3 and index number 602-[CAS?] are not interchangeable and not decorative. The index number ties the entry to the harmonised classification; the CAS number ties it to the chemical literature. A file carrying one without the other forces every reader to reconstruct the link, and reconstruction is where errors enter.

What is the EC number for chloroform?

Alongside CAS 67-66-3, this substance carries EC number 200-663-8 and Annex VI index 602-[CAS?]. European documentation is built around the EC number as often as around the CAS: registration dossiers, the candidate list and customs systems key on it. A safety data sheet quoting only one of the two forces every downstream reader to look up the other.

Can I import chloroform into the EU?

The introduction of chloroform into the Union necessitates the preparation of documentation prior to logistical arrangements. The documentation file must be available at the time of import, not merely upon request; for this purpose, substances listed in CLP Annex VI is assessed within the context of regulated consignments. Index 602-[CAS?] establishes the classification that Section 2 must reflect accordingly.

How is chloroform classified for road, sea and air transport?

Transport classification for chloroform sits in section 14 and differs by mode: ADR for road, IMDG for sea, IATA for air. A sheet that prints all three without stating which applies leaves the shipper to choose, and the shipper is the one penalised for choosing wrong.

Purity, certificates and what the sheet does not say

Purity grade is a certificate question, not a safety data sheet question. The sheet for chloroform describes the substance; a certificate of analysis describes one batch of it, with the measured result against the specification and the analytical method named per parameter. Laboratories asking for ‘the COA’ usually need both documents.

How do I check if my SDS for chloroform is still valid?

Before ordering documentation for chloroform, verify if the existing sheet can withstand an inspection. Conduct a section-by-section review against Annex II to determine compliance in one pass; if it meets the requirements, the honest assessment confirms its validity.

Protective equipment and exposure controls

When conducting a risk assessment for chloroform, laboratories must begin by referring to Section 8. If an occupational exposure limit is in place, it is essential to clearly state this limit along with its source and the corresponding averaging period. In cases where no such limit exists, the documentation should explicitly indicate this fact rather than leaving the relevant field blank.

Which GHS pictograms apply to chloroform?

The label for chloroform carries GHS06 (skull and crossbones), GHS08 (health hazard), with the signal word Danger. These are not chosen by the supplier: CLP Annex VI states them for CAS 67-66-3, and the precedence rules in Annex I decide which pictogram is dropped when two would say the same thing. A label showing a different set from the register is wrong even if every hazard statement on it is correct.

Questions about documentation for chloroform

In which language must the sheet be supplied?

In an official language of each Member State where chloroform is placed on the market, unless that State has stated otherwise.

Can I check whether my existing sheet is still valid?

Yes. A section-by-section reading against Annex II and the current harmonised entry establishes that in one pass, and a sheet that passes is reported as passing.

Do I need a safety data sheet to import chloroform into the EU?

Yes. A sheet compiled to Annex II of REACH must exist before the first consignment moves, and it must be held by the entity placing the substance on the Union market.

What is the CAS number of chloroform?

CAS 67-66-3. In CLP Annex VI the same substance carries index number 602-[CAS?], and both identifiers should appear in the documentation.

MolGod.org issues documentation and does not sell, supply or ship chemical substances. CAS 67-66-3 identifies the subject of this document.