Epitestosterone

Epitestosterone
Identifiers
	IUPAC name 17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17- dodecahydrocyclopenta[a]phenanthren-3-one;
CAS Number	481-30-1;
CompTox Dashboard (EPA)	DTXSID8022329 ;
ECHA InfoCard	100.169.813
Chemical and physical data
Formula	C19H28O2

Epitestosterone is a natural steroid, chemically similar to testosterone.

Tests to determine the ratio of testosterone to epitestosterone in urine are used to find athletes who are blood doping. A normal healthy person has a ratio of about 1:1 testosterone to epitestosterone in their urine^[1].

It was revealed on July 27, 2006 that Floyd Landis, winner of the 2006 Tour de France, had a testosterone to epitestosterone ratio in violation of the 4:1 limit imposed by the race organizers, suggesting doping, though this may heve been caused by a low epitestosterone level rather than an elevated testosterone level.

External links

Landis Fails Drug Test After Triumph in Tour de France

Notes

^ "Substances: Testosterone to epitestosterone (T/E) ratio". Australian Government. Tuesday, February 28, 2006. {{cite news}}: Check date values in: |date= (help)

[1] "Substances: Testosterone to epitestosterone (T/E) ratio". Australian Government. Tuesday, February 28, 2006. {{cite news}}: Check date values in: |date= (help)

[1]