CAS Registry Number

CAS 78-09-1 — Tetraethyl orthocarbonate

Tetraethyl orthocarbonate (TEOC) is a clear, colorless liquid ester used as a reagent in organic synthesis, particularly for protecting carbonyl groups in chemical reactions. It serves as a versatile intermediate in pharmaceuticals, agrochemicals, and fine chemical production. This chemical has a CAS number of 78-09-1, molecular formula C9H20O4, and a molecular weight of 192.2527 g/mol. It is stable at ambient storage conditions with no signal word classification. Molekula supplies Tetraethyl orthocarbonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.