CAS 1685-80-9 appears in our catalog under these names: 2,4–Dimethylcinnamic acid, 2,4-Dimethylcinnamic acid, 3-(2,4-Dimethylphenyl)acrylic acid 95% (E), 3-(2,4-Dimethylphenyl)acrylic acid, 95% (E), 95% (E), 3-(2,4-Dimethylphenyl)acrylic acid, 95%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 25g, 5g, 50g, 250mg.