Methylstenbolone (stenbolon; Stenbolone; 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 pondus hypotheticum: 302.455 Liquefactio Point: 154-156°C Properties: cerussa Ritus: pharmaceutical intermedia.Nutritional Supplementum.