英文别名Avanafil Impurity 28; ethyl 4-[(3,5-dichloro-4-methoxyphenyl)methylamino]-2-methylsulfanylpyrimidine-5-carboxylate; ethyl 4-[(3,5-dichloro-4-methoxy-phenyl)methylamino]-2-methylsulfanyl-pyrimidine-5-carboxylate; Avanafil Impurity; AvafilImpurity21; 5-Pyrimidinecarboxylic acid, 4-[[(3,5-dichloro-4-methoxyphenyl)methyl]amino]-2-(methylthio)-, ethyl ester 
