CAS 1334378-92-5 appears in our catalog under these names: Sulfamethizole 13C6 (phenyl 13C6), Sulfamethizole-13C6, 13C6-Sulfamethizole, Concentration: 100 µg/ml Solvent: Methanol, 13C6-Sulfamethizole. Offered by: Dr. Ehrenstorfer, TRC, HPC Standards. Available pack sizes: 10mg, 25mg, 1x1ml, 1x10mg.