Methylstenbolone (stenbolon; Stenebolone; methylsten) alias: 2a,17a-dimethyl-5a-androst-1-ene-3-one-17b-ol; 17β-Hydroxy-2-methyl-5α-androst-1-en-3-one CAS: 5197-58-0 Assay: 99.5% Formulae hypotheticae: C20H30O2 Molecular Weight: 302.455 Liquescens punctum: 154-156°C Properties: white powder Usage: pharmaceutical intermediates.Nutritional Supplement.