ablukast ablukast ablukast (inn) is a leukotriene antagonist which has applications in the treatment of inflammatory skin conditions. ablukastclinical dataatc codenoneidentifiers iupac name 6-acetyl-7-chroman-2-carboxylic acid cas number96566-25-5pubchem cid57109chemspider51496 yunii000tkm5bbqkeggd02739 ychemblchembl22016 ycomptox dashboard (epa)dtxsid20869277 chemical and physical dataformulac28h34o8molar mass498.572 g·mol−13d model (jsmol)interactive image smiles cccc1=c(c=cc(=c1o)c(=o)c)occcccoc2=cc3=c(ccc(o3)c(=o)o)c=c2c(=o)c inchi inchi=1s/c28h34o8/c1-4-8-21-23(12-10-20(17(2)29)27(21)31)34-13-6-5-7-14-35-26-16-25-19(15-22(26)18(3)30)9-11-24(36-25)28(32)33/h10,12,15-16,24,31h,4-9,11,13-14h2,1-3h3,(h,32,33) ykey:fggyjwzydaroff-uhfffaoysa-n y (verify)