CAS 163808-13-7 appears in our catalog under these names: 4-Nitro-1,3-benzoxazole, 98%, 4-Nitro-1,3-benzoxazole 98%, 4-Nitrobenzoxazole, 98%, 98%. Offered by: Combi-blocks, Ambeed, Chemat, Fluorochem. Available pack sizes: 5g, 1g, 10g, 25g, 250mg, 100mg.