CAS 193902-64-6 appears in our catalog under these names: 1-Boc-4-(4-aminophenyl)piperazine hydrochloride, 95%, tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate hydrochloride, 99.64%, 1-Boc-4-(4-aminophenyl)piperazine dihydrochloride, 98%, 98%, TERT-BUTYL 4-(4-AMINOPHENYL)PIPERAZINE-1-CARBOXYLATE HCL, 98%. Offered by: Combi-blocks, MedChemExpress, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 1 g, 5 g.