
Androstanediones are a pair of isomeric steroids which differ at the 5-position. They are distinguished as 5α-androstanedione and 5β-androstanedione. In humans, 5α-androstanedione is a metabolic precursor of both testosterone and estrone. ...
Found on
http://en.wikipedia.org/wiki/Androstanedione

5alpha-Androstane-3,17-dione;a steroid metabolite, of which the 5b isomer is also known. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

Type: Term Pronunciation: an′drō-stān′dī-ōn Definitions: 1. A steroid metabolite, of which the 5β isomer is also known. It is a precursor of both testosterone and estrone. It is secreted by the adrenals.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=3583
No exact match found.