bml-190 bml-190 bml-190 (indomethacin morpholinylamide) is a drug used in scientific research that acts as a selective cb2 inverse agonist. bml-190 is structurally derived from the nsaid indomethacin but has a quite different biological activity. the activity produced by this compound is disputed, with some sources referring to it as a cb2 agonist rather than an inverse agonist; this may reflect an error in classification, or alternatively it may produce different effects in different tissues, and more research is required to resolve this dispute. bml-190identifiers iupac name 2--1-morpholin-4-ylethanone cas number2854-32-2 ypubchem cid2415chemspider2321 ncomptox dashboard (epa)dtxsid50951230 chemical and physical dataformulac23h23cln2o4molar mass426.892 g·mol−13d model (jsmol)interactive image smiles c4coccn4c(=o)cc(c(c1cc2)cc2oc)c(c)n1c(=o)c3ccc(cl)cc3 inchi inchi=1s/c23h23cln2o4/c1-15-19(14-22(27)25-9-11-30-12-10-25)20-13-18(29-2)7-8-21(20)26(15)23(28)16-3-5-17(24)6-4-16/h3-8,13h,9-12,14h2,1-2h3 nkey:bjsdnvvwjydolk-uhfffaoysa-n n ny (what is this?) (verify) lead optimization of the parent structure resulted in l-768,242 & l-759,787.