英文别名(2E)-2-Cyano-N,N-diethyl-3-(4-hydroxy-3-Methoxy-5-nitrophenyl)-2-propenaMide; Entacapone 3-Methyl Ether; Entacapone Impurity G; 3-O-methylentacapone; (E)-2-cyano-N,N-diethyl-3-(4-hydroxy-3-methoxy-5-nitrophenyl)prop-2-enamide; 2-Propenamide, 2-cyano-N,N-diethyl-3-(4-hydroxy-3-methoxy-5-nitrophenyl)-, (2E)-; Entacapone Impurity 70 
