1-Phenyl-3-thiosemicarbazide 1-Phenylthiosemicarbazide 645-48-7 Hydrazinecarbothioamide, 2-phenyl- NSC179798 Phenylthiosemicarbazide Semicarbazide, 1-phenyl-3-thio- Usaf ek-5426 Usaf el-45 WLN: SUYZMMR