CAS Registry Number

CAS 594-45-6 — Ethanesulfonic acid

Ethanesulfonic acid (C₂H₆O₃S) is a clear, colorless organic sulfonic acid used primarily as a reagent in chemical synthesis, pH buffer, and in the production of surfactants and pharmaceutical intermediates. It is also employed in analytical chemistry for titration and as a catalyst in certain organic reactions. This chemical has a CAS number of 594-45-6, a molecular weight of 110.1322 g/mol, and requires no special storage conditions beyond ambient temperatures. It carries no signal word under standard hazard classifications. Molekula supplies Ethanesulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.