1-Methyl-2-thiosemicarbazide 4-Methyl-3-thiosemicarbazide 4-Methylhydrazinecarbothioamide 4-Methylthiosemicarbazide 6610-29-3 B 1130 EINECS 229-563-2 Hydrazinecarbothioamide, N-methyl- Methylthiosemicarbazide N-METHYLHYDRAZINECARBOTHIOAMIDE N-Methylthiosemicarbazide NSC 56911 Semicarbazide, 4-methyl-3-thio- Semicarbazide, 4-methyl-3-thio- (8CI)