sulfamerazine sulfamerazine sulfamerazine is a sulfonamide antibacterial. sulfamerazineclinical dataahfs/drugs.cominternational drug namesatc coded06ba06 (who) j01ed07 (who) qj01eq17 (who)identifiers iupac name 4-amino-n-(4-methylpyrimidin-2-yl)benzenesulfonamide cas number127-79-7 ypubchem cid5325drugbankdb01581 ychemspider5134 yuniiur1sab295fkeggd02435 ychebichebi:102130 ychemblchembl438 ycomptox dashboard (epa)dtxsid0023612 echa infocard100.004.425 chemical and physical dataformulac11h12n4o2smolar mass264.30 g·mol−13d model (jsmol)interactive imagemelting point234 to 238 °c (453 to 460 °f) smiles o=s(=o)(nc1nc(ccn1)c)c2ccc(n)cc2 inchi inchi=1s/c11h12n4o2s/c1-8-6-7-13-11(14-8)15-18(16,17)10-4-2-9(12)3-5-10/h2-7h,12h2,1h3,(h,13,14,15) ykey:qppbrpiazzhunt-uhfffaoysa-n y (verify) synthesis sulfamerazine synthesis: u.s. patent 2,378,813