CAS 1189426-16-1 appears in our catalog under these names: Sulfadiazine 13C6 (phenyl 13C6), Sulfadiazine 13C6 (phenyl 13C6) 100 µg/mL in Acetonitrile, Sulfadiazine-13C6, >95% (HPLC), Sulfadiazine-(phenyl-13C6), SULFADIAZIN-13C6. Offered by: Dr. Ehrenstorfer, TRC, Biosynth, Sigma-Aldrich, MedChemExpress. Available pack sizes: 10mg, 1ml, 1mg, 25mg, 50mg, 1 mg, 1x1ml, 1x10mg.