英文别名Theophylline Impurity 10; ethyl 3-acetoxy-2-butenoate; 3-Acetoxy-2-butenoic acid ethyl ester; 3-Acetyloxy-2-butenoic acid ethyl ester; edaravone-007; Edaravone Impurity 25; (Z)-ethyl 3-acetoxybut-2-enoate; Edaravone impurity 9/ethyl (Z)-3-acetyloxybut-2-enoate; Theophylline Impurity 19; ethyl (Z)-3-acetyloxybut-2-enoate; 3-acetoxy-crotonic acid ethyl ester; Acetyl-enol-acetessigsaeure-aethylester; 3-Acetoxy-2-butensaeure-aethylester; 3-Acetoxy-crotonsaeure-aethylester 
