Chemical Name:N-tert-butyl-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide CAS Number : 98319-26-7 Molecular Formula: C23H36N2O2 Molecular Weight:372.54 Appearance: White or off-white crystalline powderAssay: 98.5-101.0Solubility Freely soluble in chloroform and in alcohol; Very slightly soluble in water Identification meets with working standardSpecific rotation -56 -60Moisture0.3 maxResidue on ignition0.1maxRelative materialTotal impurities:1.0%maxIndividual impurity:0.5%maxResidual solventsMeets the requirements