sulfisomidine sulfisomidine sulfisomidine (inn), also known as sulphasomidine (ban until 2003), sulfamethin and sulfaisodimidine, is a sulfonamide antibacterial. it is closely related to sulfadimidine. sulfisomidineclinical dataroutes ofadministrationoralatc codej01eb01 (who) pharmacokinetic datametabolismminor acetylationexcretionrenal, 85%identifiers iupac name 4-amino-n-(2,6-dimethylpyrimidin-4-yl)benzenesulfonamide cas number515-64-0 npubchem cid5343chemspider5150 yuniiw03l3odk6ekeggd01526 ychebichebi:32166 ychemblchembl485696 ycomptox dashboard (epa)dtxsid1046390 echa infocard100.007.460 chemical and physical dataformulac12h14n4o2smolar mass278.33 g·mol−13d model (jsmol)interactive image smiles o=s(=o)(nc1nc(nc(c1)c)c)c2ccc(n)cc2 inchi inchi=1s/c12h14n4o2s/c1-8-7-12(15-9(2)14-8)16-19(17,18)11-5-3-10(13)4-6-11/h3-7h,13h2,1-2h3,(h,14,15,16) ykey:yzmckzraolzxaz-uhfffaoysa-n y ny (what is this?) (verify)