xl-388 xl-388 xl-388 is a drug which acts as a potent and selective inhibitor of both subtypes of the mechanistic target of rapamycin (mtor), mtorc1 and mtorc2. it is being researched for the treatment of various forms of cancer, and has also been used to demonstrate a potential application for mtor inhibitors in the treatment of neuropathic pain. xl-388identifiers iupac name -(3-fluoro-2-methyl-4-methylsulfonylphenyl)methanone cas number1251156-08-7 ypubchem cid59604787chemspider28824127uniib7i5g3z7xrchemblchembl2333365chemical and physical dataformulac23h22fn3o4smolar mass455.50 g·mol−13d model (jsmol)interactive image smiles cc1=c(c=cc(=c1f)s(=o)(=o)c)c(=o)n2ccoc3=c(c2)c=c(c=c3)c4=cn=c(c=c4)n inchi inchi=1s/c23h22fn3o4s/c1-14-18(5-7-20(22(14)24)32(2,29)30)23(28)27-9-10-31-19-6-3-15(11-17(19)13-27)16-4-8-21(25)26-12-16/h3-8,11-12h,9-10,13h2,1-2h3,(h2,25,26)key:lnfbaysbvqbkfr-uhfffaoysa-n