CAS Registry Number

CAS 1912-32-9 — n-Butyl methanesulfonate

n-Butyl methanesulfonate is an organic sulfonate ester used primarily as a solvent, phase-transfer catalyst, and intermediate in organic synthesis, particularly in reactions requiring mild alkylation or sulfonylation. It is a colorless to pale yellow liquid with low toxicity and minimal environmental impact. This chemical has a CAS number of 1912-32-9, with the molecular formula C5H12O3S and a molecular weight of 152.212 g/mol. It is stable at ambient storage conditions and carries no signal word under standard hazard classification. Molekula supplies n-Butyl methanesulfonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.