CAS Registry Number

CAS 5162-44-7 — 4-Bromo-1-butene

4-Bromo-1-butene is a brominated alkene used primarily in organic synthesis, pharmaceutical intermediates, and polymer chemistry for its reactive bromine and alkene functional groups. It serves as a key building block in the preparation of specialty chemicals, agrochemicals, and fine chemicals. This product has a CAS number of 5162-44-7, a molecular formula of BrCH2CH2CH=CH2, and a molecular weight of 135.00 g/mol. It must be stored between 2 to 8°C and carries a **Danger** signal word due to its hazardous nature. Molekula supplies 4-Bromo-1-butene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.