CAS-Registrierungsnummer

CAS 4191-73-5 — Isopropyl-4-hydroxybenzoat

Isopropyl 4-hydroxybenzoate is a synthetic ester used as a preservative in cosmetics, pharmaceuticals, and food products due to its antimicrobial properties. It is a white to off-white crystalline powder with a molecular formula of HOC6H4COOCH(CH3)2 and a molecular weight of 180.20 g/mol. It has a CAS number of 4191-73-5 and should be stored at 2 to 8 °C. The substance is classified as a warning hazard. Molekula supplies Isopropyl 4-hydroxybenzoate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.