The chemical Nimustine hydrochloride has a designated molecular formula of C9H14Cl2N6O2 and a molecular weight of 309.151 g/mol. Synonyms may include: ACNU, 1-(4-Amino-2-methylpyrimidine-5-yl)methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride, N'-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-N-(2-chloroethyl)-N-nitrosourea HCl, 1-(4-Amino-2-methyl-5-pyrimidinyl)methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride, 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-1-(2-chloroethyl)-1-nitrosourea hydrochloride, N'-((4-Amino-2-metil-5-pirimidinil)metil)-N-(2-cloroetil)-N-nitrosourea clorhidrato [Spanish], 1-(2-Cloroetil)-1-nitroso-3-((2-metil-4-aminopirimidin-5-il)metil)urea clorhidrato [Spanish], CS-439 (ChemID). Nimustine hydrochloride has been assigned a MeSH pharmacological action of: Antineoplastic.