CAS 15959-31-6 appears in our catalog under these names: Sodium 4-nitrobenzene-1-sulfinate, Sodium 4-nitrobenzene-1-sulfinate 95%, Sodium 4-nitrobenzene-1-sulfinate, 95%, 95%, sodium 4-nitrobenzene-1-sulfinate, 98%. Offered by: Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 2,5g, 250mg, 1g, 5g, 10g, 100mg, 25g.