cloprednol cloprednol cloprednol is a synthetic glucocorticoid. it has been investigated for use in asthma. cloprednolclinical dataahfs/drugs.cominternational drug namesatc codeh02ab14 (who) identifiers iupac name (9s,10r,11s,13s,14s,17r)-6-chloro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-9,11,12,14,15,16-hexahydro-8h-cyclopentaphenanthren-3-one cas number5251-34-3pubchem cid10023463chemspider4447592uniisyp56o3gjgkeggd03561chemblchembl1697832comptox dashboard (epa)dtxsid1022849 echa infocard100.023.684 chemical and physical dataformulac21h25clo5molar mass392.873 g·mol−13d model (jsmol)interactive image smiles o=c\1\c=c/4(c(=c/1)c(\cl)=c/24(o)c3((o)(c(=o)co)cc23)c)c