CAS 193902-86-2 appears in our catalog under these names: tert-butyl 4-(4-nitro-2-(trifluoromethyl)phenyl)piperazine-1-carboxylate, 95-<97%, tert-butyl 4-(4-nitro-2-(trifluoromethyl)phenyl)piperazine-1-carboxylate, ≥97-<99%, tert-Butyl 4-(4-nitro-2-(trifluoromethyl)phenyl)piperazine-1-carboxylate, tert-Butyl 4-(2-methyl-4-nitrophenyl)piperazine-1-carboxylate, 97%, 97%. Offered by: Hoffman Fine Chemicals, Biosynth, Chemat. Available pack sizes: 1g, 2,5g, 5g, 10g, 25g, 0,5g, 250mg.