CAS 31794-45-3 appears in our catalog under these names: 3-Oxo-3,4-dihydro-2h-1,4-benzoxazine-6-sulfonyl chloride, 96%, 3–Oxo–3，4–dihydro–2H–benzo(b)(1，4)oxazine–6–sulfonyl chloride, 3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-sulfonyl chloride, 97% , 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-sulfonyl chloride 98%, 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-sulfonyl chloride, 95%. Offered by: Combi-blocks, GLPBio, Thermo Scientific, Ambeed, Fluorochem. Available pack sizes: 250mg, 5g, 10g, 1g, 25g.