CAS Registry Number

CAS 3943-89-3 — Ethyl 3,4-dihydroxybenzoate (Protocatechuic acid ethyl ester)

Ethyl 3,4-dihydroxybenzoate, also called protocatechuic acid ethyl ester, is an organic ester derived from protocatechuic acid, commonly used in pharmaceutical research, flavor and fragrance synthesis, and as an intermediate in organic chemistry. It appears as a white to off-white crystalline solid with applications in studying metabolic pathways and developing bioactive compounds. This chemical has a CAS number of 3943-89-3, a molecular formula of (HO)2C6H3CO2C2H5, and a molecular weight of 182.17 g/mol. It should be stored at ambient conditions. The product carries a **Danger** signal word due to its hazardous properties. Molekula supplies Ethyl 3,4-dihydroxybenzoate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.