Synonyms: Benzenepropanoicacid, a-[[(2E)-3-[2-(carboxymethyl)-3,4-dihydroxyphenyl]-1-oxo-2-propenyl]oxy]-3,4-dihydroxy-,(aR)- (9CI); Benzenepropanoic acid,a-[[3-[2-(carboxymethyl)-3,4-dihydroxyphenyl]-1-oxo-2-propenyl]oxy]-3,4-dihydroxy-,[R-(E)]-; Salvianolic acid D