4-Androstenediol, also known as androst-4-ene-3β,17β-diol, is an androstenediol that is converted to testosterone. The conversion rate is about 15.76%, almost triple that of 4-androstenedione, due to utilization of a different enzymatic pathway. There is also some conversion into estrogen, since testosterone is the metabolic precursor of the estrogens. 4-Androstenediol is closer to testosterone structurally than 5-androstenediol, and has androgenic effects, …

5-Androstenediol (abbreviated as 5-diol), commonly referred to simply as , and also known as androst-5-ene-3β,17β-diol, is an endogenous androgen and estrogen steroid hormone and intermediate in the biosynthesis of testosteronefrom dehydroepiandrosterone (DHEA). 5-Diol is a direct metabolite of the most abundant steroid produced by the human adrenal cortex, DHEA. It is less androgenicthan the related compound, Δ4-androstenediol, and has been …