Androsterone(ADT) is a steroid hormone with weak androgenic activity. It is made in the liver from the metabolism of testosterone. It was first isolated in 1931, by Adolf Friedrich Johann Butenandt and Kurt Tscherning. They distilled over 17000 liters of male urine, from which they got 50 milligrams of crystalline androsterone, which was sufficient to find that the chemical formula was very similar to estrone. Image is drawn in bkchem and GIMP. This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Steroid hormones are steroids which act as hormones. ... Androgen is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of masculine characteristics in vertebrates. ... The liver is an organ in vertebrates, including humans. ... Santorio Santorio (1561-1636) in his steelyard balance, from Ars de statica medecina, first published 1614 Metabolism (from μεταβολισμος (metabolismos), the Greek word for change, or overthrow (Etymonline)), is the biochemical modification of chemical compounds in living organisms and cells. ... Testosterone is a steroid hormone from the androgen group. ... 1931 is a common year starting on Thursday. ... Adolf Friedrich Johann Butenandt (March 24, 1903 _ January 18, 1995) was a German biochemist. ... Structural formula of estrone Estrone is an estrogenic hormone secreted by the ovary. ...

Androsterone may also act as a pheromone, more information can be found on the androsterone page in the Pheromone Information Library. Fanning honeybee exposes Nasonov gland (white-at tip of abdomen) releasing pheromone to entice swarm into an empty hive A pheromone is any chemical produced by a living organism that transmits a message to other members of the same species. ...