4-(Phenyl)thiosemicarbazide 4-PHENYLTHIOSEMICARBAZIDE 4-Phenyl-3-thiosemicarbazide 5351-69-9 AI3-00706 EINECS 226-329-1 Hydrazinecarbothioamide, N-phenyl- N-Phenylhydrazinecarbothioamide NSC 58946 NSC 704 Phenyl thiosemicarbazide Semicarbazide, 4-phenyl-3-thio- USAF EK-5426 USAF EL-45