1,3,7-trimethyl-8-(2-propan-2-ylidenehydrazinyl)purine-2,6-dione 8-(N'-isopropylidenehydrazino)-1,3,7-trimethyl-purine-2,6-dione 8-(N'-isopropylidenehydrazino)-1,3,7-trimethylpurine-2,6-dione 8-(N'-isopropylidenehydrazino)-1,3,7-trimethyl-xanthine 8-(N'-Isopropylidene-hydrazino)-1,3,7-trimethyl-3,7-dihydro-purine-2,6-dione MLS001049156 SMR000427790 STOCK2S-53469 ZINC00159309 SR-01000639801-1