cefsulodin cefsulodin cefsulodin is a third-generation cephalosporin antibiotic that is active against pseudomonas aeruginosa and was discovered by takeda pharmaceutical company in 1977. cefsulodinclinical dataahfs/drugs.cominternational drug namesatc codej01dd03 (who) identifiers iupac name 4-(aminocarbonyl)-1-amino}-5-thia-1-azabicyclooct-2-en-3-yl)methyl]pyridinium cas number62587-73-9 ysodium salt: 52152-93-9 ypubchem cid5284530chemspider4447588 yuniiov42lhe42bsodium salt: 2d087186py ykeggd02005 ychemblchembl1617285 ncomptox dashboard (epa)dtxsid6022769 chemical and physical dataformulac22h21n4o8s2+molar mass533.55 g·mol−13d model (jsmol)interactive image smiles o=c2n1/c(=c(\cs12nc(=o)c(c3ccccc3)s(=o)(=o)o)c4ccc(c(=o)n)cc4)c()=o inchi inchi=1s/c22h20n4o8s2/c23-18(27)13-6-8-25(9-7-13)10-14-11-35-21-15(20(29)26(21)16(14)22(30)31)24-19(28)17(36(32,33)34)12-4-2-1-3-5-12/h1-9,15,17,21h,10-11h2,(h4-,23,24,27,28,30,31,32,33,34)/t15-,17?,21-/m1/s1 ykey:sylkglmblaagsc-ikzmbghxsa-n y ny (what is this?) (verify) tap pharmaceuticals had a new drug application on file with fda for cefsulodin under the brand name cefonomil as of 1985. cefsulodin is most commonly used in cefsulodin-irgasan-novobiocin agar to select for yersinia microorganisms. this agar is most often used in water and beverage testing. susceptibility data the following represents mic susceptibility data for various p. aeruginosa strains: pseudomonas aeruginosa pa13 (resistant strain): 32 μg/ml pseudomonas aeruginosa (wild-type, susceptible): 4 - 8 μg/ml