cgp 52608 cgp 52608 cgp 52608 is a selective ligand of the rar-related orphan receptor alpha. it has been used as a biochemical tool to investigate nuclear and membrane signaling of melatonin. cgp 52608 has also been reported to possess antiarthritic activity. the pharmaceutical company novartis brought it to clinical trials for rheumatoid arthritis, but development was discontinued in 2006. cgp 52608 names iupac name 3-methyl-1-thiourea identifiers cas number 87958-67-6 3d model (jsmol) interactive image chemspider 4589397 pubchem cid 6509863 unii qs3abf85tr y inchi inchi=1/c8h12n4os2/c1-3-4-12-6(13)5-15-8(12)11-10-7(14)9-2/h3h,1,4-5h2,2h3,(h2,9,10,14)/b11-8-key: ddyjdihosrtmse-flibitnwbi smiles s=c(n\n=c1/scc(=o)n1c\c=c)nc properties chemical formula c8h12n4os2 molar mass 244.33 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references cgp 52608 contains a thiazolinidinedione group.