1 3 7-trimethylxanthine molecular weight July 8, 2019 16 32 64 128 1 3 7-trimethylxanthine 3 methylhexane 1 3 7 trimethylxanthin 1 3 6 10-cyclotetradecatetraene 3 7 11-trimethyl-14-(1-methylethyl)- s-(e z e e) -
