Trenbolone undecanoate, or trenbolone undecylate, is a synthetic injected anabolic–androgenic steroid (AAS) that is a derivative of nandrolone (19-nortestosterone) which was never marketed.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.