CAS 1142202-17-2 appears in our catalog under these names: tert-Butyl 4-(5-nitro-2-oxo-1,3-benzoxazol-3(2h)-yl)piperidine-1-carboxylate, 95%, tert-Butyl 4-(5-nitro-2-oxo-1,3-benzoxazol-3(2H)-yl)piperidine-1-carboxylate. Offered by: Combi-blocks, Biosynth. Available pack sizes: 250mg, 1g, 5g, 500mg, 1000mg, 2000mg, 5000mg.