ru-57073 ru-57073 ru-57073 is a nonsteroidal antiandrogen which was never marketed. it shows 163% of the affinity of testosterone for the androgen receptor and negligible affinity for other steroid hormone receptors. ru-57073clinical datadrug classnonsteroidal antiandrogenidentifiers iupac name 4--2-(trifluoromethyl)benzonitrile cas number143782-37-0 ypubchem cid21884237uniit5wkd9ulr6chemical and physical dataformulac15h14f3n3o2smolar mass357.35 g·mol−13d model (jsmol)interactive image smiles cc1(c(=o)n(c(=s)n1cco)c2=cc(=c(c=c2)c#n)c(f)(f)f)c inchi inchi=1s/c15h14f3n3o2s/c1-14(2)12(23)21(13(24)20(14)5-6-22)10-4-3-9(8-19)11(7-10)15(16,17)18/h3-4,7,22h,5-6h2,1-2h3key:hntmvnirypjddj-uhfffaoysa-n