19norsteroids
19norsteroids are a class of anabolic-androgenic steroids (AAS) that are characterized by the absence of a methyl group at the 19th position of the steroid nucleus. This structural modification distinguishes them from other classes of steroids. The most well-known 19norsteroid is nandrolone, which is also known as 19-nortestosterone. Other examples include trenbolone and ethylestrenol.
These compounds are synthetic derivatives of testosterone and are often used for their anabolic properties, which
The pharmacological effects of 19norsteroids are mediated through their binding to the androgen receptor. Their altered