4-07-00-00640 (Beilstein Handbook Reference) 7651-47-0 ACETOPHENONE, 4'-CHLORO-, THIOSEMICARBAZONE AI3-23051 BRN 2213843 Hydrazinecarbothioamide, 2-(1-(4-chlorophenyl)ethylidene)- NSC 705 p-Chloroacetophenone thiosemicarbazone