4-[(1E)-1-Aza-2-(4-chlorophenyl)vinyl]-3-(3-methyl-5-phenylpyrazolyl)-1,2,4-triazoline-5-thione, 4-[(1E)-1-Aza-2-(4-chlorophenyl)vinyl]-3-(5-methyl-3-phenylpyrazolyl)-1,2,4-triazoline-5-thione AIDS-105391 AIDS105391