CAS Registry Number

CAS 120-47-8 — Ethyl 4-hydroxybenzoate

Ethyl 4-hydroxybenzoate, also called ethyl paraben, is a widely used preservative in pharmaceuticals, cosmetics, and food products to inhibit microbial growth. It’s a synthetic ester of para-hydroxybenzoic acid with broad-spectrum antimicrobial properties, effective against bacteria, yeast, and mold. This chemical has a CAS number of 120-47-8, requires no signal word under standard classification, and is typically supplied as a white to slightly off-white crystalline powder with a melting point around 115–118°C. It is soluble in ethanol and propylene glycol but poorly soluble in water. Molekula supplies Ethyl 4-hydroxybenzoate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.