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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 187807Generated: October 25, 2026

Chloromethanesulfonic acid

Methanesulfonic acid, 1-chloro-

https://huagongshe.com/en/chemical/187807

Chloromethanesulfonic acid molecular structure

Identifiers & Physical Properties

CAS No.40104-07-2
Molecular formulaCH3ClO3S
Average molar mass130.55 g/mol
Monoisotopic mass129.94914264 g/mol
SMILESO=S(=O)(O)CCl
InChIKeyHMPHJJBZKIZRHG-UHFFFAOYSA-N
PubChem CID187807
DTXSIDDTXSID00960554

Chemical & Physical Properties

XLogP-0.2
Topological polar surface area62.8
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms6
Formal charge0
Complexity107
Density1.741±0.06 g/cm3(Predicted)
pKa (acidity coefficient)-0.13±0.50(Predicted)