CAS Registry Number

CAS 80-40-0 — Ethyl p-toluenesulfonate

Ethyl p-toluenesulfonate (CAS 80-40-0) is an organic sulfonate ester used primarily as an alkylating agent in pharmaceutical synthesis and organic chemistry research. It serves as a key intermediate in the production of various compounds, including certain drugs and agrochemicals. With a molecular formula of C9H12O3S and a molecular weight of 200.2548, it is stable under ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Ethyl p-toluenesulfonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.