CAS 23256-23-7 appears in our catalog under these names: Sulfatroxazole, Sulfatroxazole-d4, 4-Amino-N-(4,5-dimethyl-3-isoxazolyl)benzenesulfonamide, ≥95%, ≥95%, SULFATROXAZOLE, >=95%. Offered by: Dr. Ehrenstorfer, TRC, GLPBio, Biosynth, Chemat. Available pack sizes: 50mg, 500mg, 25mg, 5mg, 25 mg, 5 mg, 100 mg, 10 mg.