gsk2881078 gsk2881078 gsk2881078 is a drug which acts as a selective androgen receptor modulator (sarm). it was developed for the prevention of muscle wasting and sarcopenia in elderly people. gsk2881078legal statuslegal status us: investigational drug identifiers iupac name 1--4-(trifluoromethyl)indole-5-carbonitrile cas number1539314-06-1pubchem cid86709174chemspider57621607unii47m5zxu844chemical and physical dataformulac14h13f3n2o2smolar mass330.33 g·mol−13d model (jsmol)interactive image smiles c(cs(=o)(=o)c)n1c=cc2=c1c=cc(=c2c(f)(f)f)c#n inchi inchi=1s/c14h13f3n2o2s/c1-9(8-22(2,20)21)19-6-5-11-12(19)4-3-10(7-18)13(11)14(15,16)17/h3-6,9h,8h2,1-2h3/t9-/m1/s1key:skdvmpzqjmzeac-secbinfhsa-n