Testosterone undecanoate Chemical Name: 4-Androsten-17beta-ol-3-one undecanoate CAS NO.: 5949-44-0 Molecular Formula: C30H48O3 Molecular weight: 456.70 Assay: 97.0%~103.0% Standard: CP2000 Chemical Properties: White Solid usage: A metabolite of Testosterone (T155000). It is a promising androgen for male hormonal contraception.