2-AMINO-4-HYDROXY-6,7-DIMETHYL PTERIDINE2-Amino-6,7-dimethyl-4-hydroxypteridine2-AMINO-6,7-DIMETHYL-4-HYDROXYPTERIDINE2-Amino-6,7-dimethyl-4-pteridinol2-Amino-6,7-dimethyl-4-hydroxypteridine2-氨基-6,7-二甲基-4-羟基蝶啶2-氨基-6,7-二甲基-4-羟基他啶水合物2-amino-6,7-dimethyl-4-hydroxypteridine