CAS Registry Number

CAS 1445-45-0 — Trimethyl orthoacetate

Trimethyl orthoacetate is an ester of orthoacetic acid, widely used as a methylating agent and in organic synthesis for acetal formation, protecting groups, and polymer chemistry. It serves as a versatile reagent in pharmaceutical intermediates, agrochemicals, and fine chemical production. This clear, colorless liquid has a CAS number of 1445-45-0, contains no signal word for hazard classification, and is typically supplied with a purity of ≥98%. Molekula supplies Trimethyl orthoacetate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.