Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-06-17 20:16:00 UTC
Update Date2025-10-07 16:04:20 UTC
Metabolite IDMMDBc0056079
Metabolite Identification
Common Namemethanesulfinic acid
DescriptionMethanesulfinic acid is a sulfinic acid, specifically an organic sulfur compound characterized by the chemical structure CH3S(O)OH. It plays a significant role in atmospheric chemistry, particularly in the oxidation processes of dimethyl sulfide (DMS), where it is formed alongside other products such as methanesulfonic acid and various radicals (PMID:38051922 ). Methanesulfinic acid is involved in reactions that generate hydroxyl radicals, which can limit the formation of other compounds like benzyl alcohol (PMID:40990382 ). Furthermore, it participates in gas-phase oxidation reactions that yield sulfurous acid (H2SO3) under specific conditions (PMID:38702972 ). In biological contexts, methanesulfinic acid can be released during chemical reactions involving amino acids, contributing to modifications of proteins (PMID:31332745 ). It is also found in aerosols, indicating its prevalence in environmental samples (PMID:38726054 ). The compound's behavior at the air-water interface has been studied to understand its environmental impact (PMID:30856564 ). Overall, methanesulfinic acid serves as a crucial intermediate in various chemical pathways, influencing both atmospheric and biological processes.
Structure
Synonyms
ValueSource
Methanesulfinic acidGenerator
MethanesulphinateGenerator
Methanesulphinic acidGenerator
Molecular FormulaCH3O2S
Average Mass79.09
Monoisotopic Mass78.985924091
IUPAC Namemethanesulfinate
Traditional Namemethanesulfinate
CAS Registry NumberNot Available
SMILES
CS([O-])=O
InChI Identifier
InChI=1S/CH4O2S/c1-4(2)3/h1H3,(H,2,3)/p-1
InChI KeyXNEFVTBPCXGIRX-UHFFFAOYSA-M