英文别名4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide; Sildenafil Carboxamide Impurity; 4-[(2-Ethoxybenzoyl)amino]-1-Methyl-3-propyl-; Sildenafil Di-Amide Impurity; 4-(2-Ethoxybenzamido)-1-methyl-3-propyl-1H-pyrazole-5-carboxamide; 1H-Pyrazole-5-carboxamide, 4-[(2-ethoxybenzoyl)amino]-1-methyl-3-propyl-; 4-(2-Ethoxybenzamido)-1-methyl-3-n-propylpyrazole-5-carboxamide 
