3-(2,5-Dihydroxyphenyl)-2-propenoic acid636-01-131 % similar 3,4-Dihydroxyphenylacetic acid102-32-931 % similar L-Dopa methyl ester hydrochloride1421-65-431 % similar Sodium danshensu67920-52-931 % similar Licochalcone B58749-23-831 % similar Hydroxytyrosol acetate69039-02-730 % similar Dihydrocaffeic acid1078-61-130 % similar (±)-3,4-Dihydroxymandelic acid14883-87-530 % similar Desmethoxycurcumin22608-11-330 % similar Nordihydroguaiaretic acid500-38-930 % similar