(75)Seleno-homocholic acid-taurine 23-seleno-25-homotaurocholic acid 75018-70-1 Ethanesulfonic acid, 2-(((((3alpha,5beta,7alpha,12alpha,20S)-3,7,12-trihydroxy-20-methylpregnan-21-yl)seleno-75Se)acetyl)amino)- Se(75)Hcat Se-Hcat Tauro-23-selena-25-homotaurocholic acid