Androstan is classified as an androgen or an Androgen derivative. Androgens are 3-hydroxylated C19 steroid hormones. They are known to favor the development of masculine characteristics. They also show profound effects on scalp and body hair in humans. androst-5-ene-3,17-dione is considered to be practically insoluble (in water) and relatively neutral

Excerpt from hmdb.ca:
http://www.hmdb.ca/metabolites/HMDB0062415

• Androstane can exist as either of two isomers, known as 5alpha-androstane and 5beta-androstane.

5alpha-Androstane is reported to be effective as an androgen, in spite of having no oxygen substitutions.

Androstanedione is a steroid metabolite and a procursor of both testosterone and estrone. This compound belongs to the class of organic compounds known as androgens and derivatives. These are steroid hormones. They are known to favor the development of masculine characteristics. They also show profound effects on scalp and body hair in humans.

Excerpt from hmdb.ca:
http://www.hmdb.ca/metabolites/HMDB0000899

• Androstanedione is a naturally occurring androstane (5alpha-androstane) steroid
• It's also an endogenous metabolite of androgens like testosterone, dihydrotestosterone (DHT), dehydroepiandrosterone (DHEA), and androstenedione.

It has some androgenic activity.