The chemical Carmustine has a designated molecular formula of C5H9Cl2N3O2 and a molecular weight of 214.046 g/mol. Synonyms may include: AI3-52216, BCNU, Bi CNU, BiCNU, Bischlorethylnitrosourea, Bischlorethylnitrosurea, Bischloroethyl nitrosourea, Bischloroethylnitrosourea, Bis-N,N'-(chloroethyl)nitrosourea, N,N'-Bis(2-chloroethyl)-N-nitrosourea, 1,3-Bis(beta-chloroethyl)-1-nitrosourea, 1,3-Bis(2-chloroethyl)nitrosourea (ChemID). Carmustine has been assigned a MeSH pharmacological action of: Antineoplastic.