Trenbolone Enanthate is regarded as a 19-nor steroid, similar to its parent steroid Nandrolone. The key difference between them is that Trenbolone has a double carbon bond present at both the 9 th and 11 th position and they differ in chemical structure: Nandrolone (C 18 H 26 O 2 ) and Trenbolone (C 20 H 24 O 3 ). Trenbolone resists conversion to estrogen. It bonds securely to androgen receptors, which is why it’s known for its muscle building and fat burning abilities . Regardless of benefits, it’s always important to be aware of Trenbolone enanthate side effects as well. Click here to buy Trenbolone (Trenorol) online.