Methanesulfonic Acid

CAS 75-75-2  ·  CH4O3S  ·  MW 96.11 g/mol

Full record: Methanesulfonic Acid — Safety Data Sheet →

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3D model Methanesulfonic Acid, CAS 75-75-2, molecular formula CH4O3S, molar mass 96.11 g/mol

Model views

  • Methanesulfonic Acid (CAS 75-75-2) – ball-and-stick 3D model, MolGod Viewer
    ball-and-stick 3D model
  • Methanesulfonic Acid (CAS 75-75-2) – skeletal 3D model, MolGod Viewer
    skeletal 3D model
  • space-filling 3D model – rotation animation
  • Methanesulfonic Acid (CAS 75-75-2) – 2D structure, MolGod Viewer
    2D structure

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About Methanesulfonic Acid

Methanesulfonic Acid is a chemical compound registered under number CAS 75-75-2, with the molecular formula CH4O3S, and a molar mass of 96.11 g/mol.

The molecule contains 9 atoms connected by 8 chemical bonds. The full systematic IUPAC name of this compound is methanesulfonic acid. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = -0.9 (negative value, a hydrophilic compound), polar surface area PSA = 62.8 Ų, 1 donors and 3 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The interactive 3D model and the viewer images are protected by copyright (© MolGod.org) — terms of use: molgod.org/copyright/.

Physicochemical properties
Molecular formulaCH4O3S
Molar mass96.11 g/mol
IUPACmethanesulfonic acid
SMILESCS(=O)(=O)O
InChIKeyAFVFQIVMOAPDHO-UHFFFAOYSA-N
logP (XLogP3)-0.9
PSA62.8 Ų
HBD / HBA1 / 3
PubChem CIDCID 6395 ↗
GHS safety

Signal word: Danger

GHS05
GHS05

H314 — Causes severe skin burns and eye damage

Scientific literature

Brak articles naukowych dla CAS 75-75-2 w PubMed / OpenAlex / Semantic Scholar.

Synonyms
METHANESULFONIC ACID · 75-75-2 · Methylsulfonic acid · Methanesulphonic acid · Kyselina methansulfonova · NSC-3718 · 12EH9M7279 · J1.465F · DTXCID806422 · CHEBI:27376 · NSC3718 · RefChem:6013 · 200-898-6 · Mesylate · Mesylic acid
Data sources
Related molecules
📜 License & provenanceMolGod_License_1
COMPUTED — PubChem3D · 3D conformer computed by PubChem using OMEGA; not an experimental structure.
Model
Methanesulfonic Acid · 75-75-2
InChIKey
AFVFQIVMOAPDHO-UHFFFAOYSA-N
License
CC BY-SA 4.0 International
Attribution
MolGod Scientific — Methanesulfonic Acid (CAS 75-75-2)
License & provenance record
Methanesulfonic Acid (CAS 75-75-2) →
MolGod molecule record
Methanesulfonic Acid →
Source data
PubChem CID 6395 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
a21738c1ae5d9fd5068a583cb1ea280575c53d129e10acc6d84188e896dd4e00
MD5 (STL)
2034d18418eb701f2f0e94e4c906b919
MolGod Identification Number
MG_510-782-931-75
Transformation
MolGod Scientific ball-and-stick mesh
Changes
Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
Wikimedia Commons
STL · PNG
Free printable molecule model
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This 3D model is also published on: Zenodo (DOI 10.5281/zenodo.23969934) · Wikimedia Commons
Included in datasets: Hugging Face · OSF project index
Source structure: PubChem (CID 6395)
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