135471-72-6 4-(6,9-Dihydro-9-methyl-5-oxo-6-propyl-5H-1,2,4-triazolo(3,4-i)purin-3-yl)benzoic acid 6,9-Dihydro-9-methyl-6-n-propyl-3-(4-carboxyphenyl)-5H-1,2,4-triazolo(3,4-i)purin-5-one Benzoic acid, 4-(6,9-dihydro-9-methyl-5-oxo-6-propyl-5H-1,2,4-triazolo(3,4-i)purin-3-yl)-