Trenbolone undecanoate
Chemical compound
From Wikipedia, the free encyclopedia
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.[1][2] It is the C17β undecanoate (undecylate) ester and a long-acting prodrug of trenbolone.[1][2] The drug was described by researchers at Roussel Uclaf in 1967 and was the first long-lasting ester of trenbolone to be developed.[1][2] Subsequently, trenbolone hexahydrobenzylcarbonate, a roughly equivalent compound, was developed and approved in Europe for human medical use in 1980, though it was discontinued in 1997.[2] Trenbolone enanthate is another long-lasting ester of trenbolone.[2] Similarly to trenbolone undecanoate, it was never approved for human use, but is sold on the black market for use by bodybuilders and athletes.[2]
- UK: Class C
- US: Schedule III
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| Other names | Trenbolone undecylate; Estra-4,9,11-trien-17β-ol-3-one 17β-undecylate |
| Routes of administration | Intramuscular injection |
| Drug class | Androgen; Anabolic steroid; Androgen ester; Progestogen |
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| Formula | C29H41O3 |
| Molar mass | 437.644 g·mol−1 |
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