CAS 637-57-0 appears in our catalog under these names: Methyl trans-3-(4-nitrophenyl)prop-2-enoate, 98%, (E)-Methyl 3-(4-nitrophenyl)acrylate, 98%, Methyl (2E)-3-(4-nitrophenyl)prop-2-enoate, (E)-Methyl 4-nitrocinnamate, 95%, 95%, (E)-Methyl 3-(4-nitrophenyl)acrylate, 95%. Offered by: Combi-blocks, AmBeed, Biosynth, Chemat, Fluorochem. Available pack sizes: 5g, 1g, 10g, 25g, 100mg, 250mg.