英文别名1-benzyl-3,7-dimethylxanthine; 1-benzyl-3,7-dimethyl-3,7-dihydro-purine-2,6-dione; benzyl-1 dimethyl-3,7-xanthine; 1-Benzyl-3,7-dimethyl-3,7-dihydro-purin-2,6-dion; benzyl theophylline; Pentoxifylline Impurity I; Pentoxifylline EP impurity I; Pentoxifylline Impurity 9; 1H-Purine-2,6-dione, 3,7-dihydro-3,7-dimethyl-1-(phenylmethyl)-; 1-benzyl-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione; 1-benzyl-3,7-dimethyl-1H-purine-2,6(3H,7H)-dione 
