英文别名(R,S)-N-Acetyl-3,4-dimethoxy phenylalanine; N-ACETYL-3-(3,4-DIMETHOXYPHENYL)-DL-ALANINE; Levodopa Impurity 15; Levodopa Impurity 3; Tyrosine, N-acetyl-3-methoxy-O-methyl-; N-Acetyl-3,4-dimethoxy-DL-phenylalanine; N-Acetyl-3-methoxy-O-methyltyrosine; N-acetyl-3,4-dimethoxyphenylalanine; N-Acetyl-3-(3,4-dimethoxy-phenyl)-dl-alanin 
