Trenbolone Base Chemical Data: CAS:10161-33-8 Formule moléculaire:C18H22O2 Molecular Weight:270.37 Apparence:White powder Assay： 99% Origine: China What is Trenbolone Base ? Trenbolone Base is trenbolone without ester attached. Trenbolone, also known as trienolone or trienbolone, as well as 19-nor-δ9,11-testosterone, Δ9,11-nandrolone, or estra-4,9,11-trien-17β-ol-3-one, is an anabolic-androgenic steroid (SAA) of the 19-nortestosterone group. It is used in veterinary medicine in livestock to increase muscle …