CAS 127-68-4 appears in our catalog under these names: Sodium 3-Nitrobenzenesulfonate, >95% (HPLC), Sodium 3-nitrobenzenesulfonate/ 99.8% (existing batch purity), Sodium 3-nitrobenzenesulfonate, 98%, water <2% , Sodium 3-Nitrobenzenesulfonate, >95.0%(T), Sodium 3-nitrobenzenesulphonate. Offered by: TRC, TargetMol, Thermo Scientific (Alfa Aesar), TCI, Biosynth. Available pack sizes: 10g, 25g, 5g, 5mg, 10mg, 25mg, 50mg, 100mg.