2-propenoic acid, 3-(3-methoxyphenyl)- 3-(3-methoxyphenyl)acrylic acid 6099-04-3 CINNAMIC ACID,3-METHOXY InChI=1/C10H10O3/c1-13-9-4-2-3-8(7-9)5-6-10(11)12/h2-7H,1H3,(H,11,12