CAS 20595-45-3 appears in our catalog under these names: (2E)-3-(2,4-Dichlorophenyl)acrylic acid, (E)-3-(2,4-Dichlorophenyl)acrylic acid 98%, trans-2,4-Dichlorocinnamic acid, 98%, trans–2,4–Dichlorocinnamic Acid, trans-2,4-Dichlorocinnamic Acid, >98.0%(GC)(T). Offered by: Biosynth, Ambeed, Combi-blocks, GLPBio, TCI. Available pack sizes: 1000mg, 2000mg, 5000mg, 10000mg, 25g, 100g, 5g, 500g.