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.

CAS：5982-99-0
中文别名：
英文别名：5α-Androstandion-(3,17);3,17-Dioxo-5α-androstan;3,17-Diketo-(5α,10β,13β)androstan;5α-Androst-4-en-3,17-dion;(5α)-androstane-3,17-dione;5α-Androstan-3,16-dion;
分子式：C19H28O2
分子量：288.424
精确质量：288.209
Psa：34.14
Logp：4.1673