1,3,7-Trimethyl-8-(3-chlorostyryl)xanthine 148589-13-3 1H-Purine-2,6-dione, 8-(2-(3-chlorophenyl)methyl)-3,7-dihydro-1,3,7-trimethyl- 8-(2-(3-Chlorophenyl)methyl)-3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione 8-(3-chlorostyryl)caffeine 8-CSC Csc cpd