CH4O3S
96.11 g/mol
Industrial ChemicalDanger
METHANESULFONIC ACID
CAS75-75-2EC200-898-6
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
Solvent, catalyst, and chemical intermediate
Methanesulfonic acid is an organosulfuric, colorless liquid and the simplest of the alkylsulfonic acids. It is widely used as a solvent, catalyst, and chemical intermediate in industrial processes.
solventcatalystchemical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Eaton's reagent
CAS39394-84-8
Eaton's reagent for organic synthesis
ReferenceSame Category
Trimethylchlorosilane
CAS75-77-4
Silylating agent and silicone intermediate
ReferenceSame Category
Dimethyldichlorosilane
CAS75-78-5
Production of silicone products and polymers
ReferenceSame Category
Methyltrichlorosilane
CAS75-79-6
Intermediate for silicones production
ReferenceSame Category
Neopentyl alcohol
CAS75-84-3
organic synthesis and solvent
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H290May be corrosive to metals
H302Harmful if swallowed
H312Harmful in contact with skin
H318Causes serious eye damage
H335May cause respiratory irritation
H301Toxic if swallowed
H332Harmful if inhaled
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for METHANESULFONIC ACID (CAS 75-75-2) is 2904.10.
HS code (international, 6-digit)
2904.10
EU CN code (8-digit)
2904 10 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
methanesulfonic acid
InChIKey
AFVFQIVMOAPDHO-UHFFFAOYSA-N
SMILES
CS(=O)(=O)O
Synonyms (27)
- 03S
- Aliphatic sulfonate
- Alkanesulfonate
- J1.465F
- Kyselina methansulfonova
- LACTIC ACID(DL)
- METHANESULFONIC ACID
- Mesylate
- Mesylic acid
- Methanesulfonic acid solution
- Methanesulfonic acidMSA
- Methanesulphonic acid
- Methansulfonsaeure
- Methylsulfonic acid
- Sulfomethane
- metanesulfonic acid
- methansulfonic acid
- methansulphonic acid
- methylsulphonic acid
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