CAS 1020719-82-7 appears in our catalog under these names: Sulfadimidine-d4, Sulfamethazine-d4 (benzene-d4), 98 atom % D, min 98% Chemical Purity, Sulfamethazine-d4, >95% (HPLC), Sulfamethazine–D4, Sulfamethazine-d4, 99.91%. Offered by: Chemat Brand, CDN, TRC, GLPBio, MedChemExpress. Available pack sizes: on request, 0,01g, 0,005g, 10mg, 1mg, 5 mg, 1 mg, 10 mg.