英文别名N-NITROSO-N-METHYL-4-AMINOBUTYRIC ACID, METHYL ESTER; 4-(MethylnitrosoaMino)butanoic Acid Methyl Ester; Methyl(3-carboxypropyl)nitrosaMine Methyl Ester; Butanoic acid, 4-(methylnitrosoamino)-, methyl ester; N-Nitroso-N-methyl-4-aminobutyric Acid Methyl Ester