CAS Registry Number

CAS 614-45-9 — tert-Butyl peroxybenzoate

tert-Butyl peroxybenzoate is an organic peroxide widely used as a free-radical initiator in the polymerization of unsaturated monomers, including plastics, rubbers, and coatings. It accelerates curing in thermosetting resins and is applied in industrial manufacturing for its controlled decomposition at elevated temperatures. This chemical has a CAS number of 614-45-9 and carries no signal word under CLP/GHS classification, indicating low acute hazard. It is a white to off-white crystalline solid with a melting point of 35–38°C and is typically handled with standard industrial precautions for peroxides. Molekula supplies tert-Butyl peroxybenzoate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.