Synonyms: 6-(Ethylsulfonyl)-3-phenyl-1,2,4-triazolo(3,4-a)phthalazine;1,2,4-Triazolo(3,4-a)phthalazine, 6-(ethylsulfonyl)-3-phenyl-;6-(Ethylsulphonyl)-3-phenyl-1,2,4-triazolo(3,4-a)phthalazine;AC1MIJXO;LS-156595;6-ethylsulfonyl-3-phenyl-[1,2,4]triazolo[3,4-a]phthalazine;87540-67-8