英文别名:
Entacapone Impurity 4;Entacapone Impurity;(2E)?-2-Cyano-?3-?(4-?hydroxy-?3-?methoxy-?5-?nitrophenyl)?-?2-?propenoic Acid;Entacapone Impurity 25;(E)-2-Cyano-3-(4-hydroxy-3-methoxy-5-nitrophenyl)acrylic acid;2-Propenoic acid, 2-cyano-3-(4-hydroxy-3-methoxy-5-nitrophenyl)-, (2E)-