CAS 731793-03-6 appears in our catalog under these names: Ethyl 1-(2-cyano-4-nitrophenyl)piperidine-3-carboxylate, 95%, Ethyl 1-(2-cyano-4-nitrophenyl)piperidine-3-carboxylate, 98%, 98%, ethyl 1-(2-cyano-4-nitrophenyl)piperidine-3-carboxylate, 98%. Offered by: Combi-blocks, Chemat, Fluorochem. Available pack sizes: 250mg, 1g, 100mg, 5g.