HE 781;tetroxoprim;Famoxadone Impurity 10;2,4-Diamino-5-[3,5-dimethoxy-4-(2-methoxyethoxy)benzyl]pyrimidine;5-[3,5-Dimethoxy-4-(2-methoxyethoxy)benzyl]pyrimidine-2,4-diamine;5-[3,5-Dimethoxy-4-(2-methoxyethoxy)benzyl]-2,4-pyrimidinediamine;5-[[3,5-Dimethoxy-4-(2-methoxyethoxy)phenyl]methyl]-2,4-pyrimidinediamine;5-[[3,5-dimethoxy-4-(2-methoxyethoxy)phenyl]methyl]pyrimidine-2,4-diamine;2,4-Pyrimidinediamine, 5-[[3,5-dimethoxy-4-(2-methoxyethoxy)phenyl]methyl]-