lgd-3303 lgd-3303 lgd-3303 is a drug which acts as a selective androgen receptor modulator (sarm), with good oral bioavailability. it is a selective agonist for the androgen receptor, producing functional selectivity with effective dissociation of anabolic and androgenic effects, acting as a partial agonist for androgenic effects, but a full agonist for anabolic effects. it has been investigated as a possible treatment for osteoporosis, and was shown in animal studies to enhance the effectiveness of a bisphosphonate drug. lgd-3303clinical dataroutes ofadministrationby mouthidentifiers iupac name 9-chloro-2-ethyl-1-methyl-3-(2,2,2-trifluoroethyl)-3h,6h,7h-pyrroloquinolin-7-one cas number917891-35-1pubchem cid25195253chemspider35143239unii7n4e1x2rjmchemical and physical dataformulac16h14clf3n2omolar mass342.75 g·mol−13d model (jsmol)interactive image smiles ccc1=c(c2=c(n1cc(f)(f)f)c=cc3=c2c(=cc(=o)n3)cl)c inchi inchi=1s/c16h14clf3n2o/c1-3-11-8(2)14-12(22(11)7-16(18,19)20)5-4-10-15(14)9(17)6-13(23)21-10/h4-6h,3,7h2,1-2h3,(h,21,23)key:omxgogxewuclfi-uhfffaoysa-n (verify)