Methanesulfonic acid

CH4O3SCAS 75-75-296.10 g/mol

Open in Covalent MOL file
SOOHO
Sulfonic acid

Properties

Molecular formula
CH4O3S
Molar mass
96.10 g/mol
Exact mass
95.9881 Da
Density
1.4812 g/mL (at 18 °C)
Melting point
20 °C
Boiling point
167 °C (at 10 Torr)
pKa
-1.86
Flash point
189 °C (closed cup)
Water solubility
miscible (20 °C)
logP
-0.50Crippen estimate
Polar surface area
54.4 Ų
H-bond donors / acceptors
1 / 2
Rotatable bonds
0

Hazards

Danger
Corrosive (GHS05)

Harmonised EU classification (CLP Annex VI, index 607-145-00-4), via PubChem.

Precautionary statements

P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501

Identifiers

CAS number
75-75-2
SMILES
CS(=O)(=O)O
InChIKey
AFVFQIVMOAPDHO-UHFFFAOYSA-N
InChI
InChI=1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

12 names
  • Methylsulfonic acid
  • MCAT 1201
  • NSC 3718
  • Scaleva
  • Mesylic acid
  • Lutropure MAS
  • Lutropur MSA
  • Lutropur G 100
  • Circuposit neutralizer 3319/4190
  • Methanesulfonic acids
  • Mesylates
  • Lutropur MSA 100

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 75-75-2. Each row opens the sheet with its composition and PDF.

Open in the SDS library

Work with Methanesulfonic acid

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Isotope patternExact mass and the mass spectrum pattern

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Dihydroergotamine mesylate6190-39-2Salt Doxazosin mesylate77883-43-3Salt Deferoxamine mesylate138-14-7Salt Benztropine mesylate132-17-2Salt Tricaine methanesulfonate886-86-2Salt Bromocriptine mesylate22260-51-1Salt Almitrine bismesylate29608-49-9Salt Gabexate mesilate56974-61-9Salt Imatinib mesylate220127-57-1Salt Phentolamine methanesulfonate65-28-1Salt Nafamostat mesylate82956-11-4Salt Nelfinavir mesylate159989-65-8Salt

Similar compounds

Methylsulfonylmethane67-71-031 % similar Sulfuric acid7664-93-931 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia