Synonyms: 3-phenyl-5-[(e)-phenyldiazenyl]-1,3,4-thiadiazol-2(3h)-one;17883-57-7;NSC147741;AC1Q6MR7;AC1L67X7;AR-1F5007;NSC-147741;3-phenyl-5-phenyldiazenyl-1,3,4-thiadiazol-2-one;1,4-Thiadiazol-2(3H)-one, 3-phenyl-5-(phenylazo)-;3-phenyl-5-phenyldiazenyl-3H-[1,3,4]thiadiazol-2-one;.DELTA.2-1,4-Thiadiazolin-5-one, 4-phenyl-2-(phenylazo)-