3,4,5-Trimethoxycinnamic acid 98%(E)-3-(3,4,5-trimethoxyphenyl)acrylic acid(2E)-3-(3,4,5-Trimethoxyphenyl)acrylic acid3,4,5-Trimethoxycinnamic acid3,4,5-三甲氧基肉桂酸3,4,5-TRIMETHOXYCINNAMIC ACID3,4,5-Trimethoxycinnamic acid, predominantly trans3,4,5-三甲氧基肉桂酸,主体成分为反式TMCA3-(3,4,5-Trimethoxyphenyl)-2-propenoic acid3,4,5-trimethoxycinnamic acid3,4,5-Trimethoxyphenylacrylic acid3-(3,4,5-trimethoxyphenyl)acrylic acidO-Methylsinapic acid