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| Clinical data | |
|---|---|
| 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 |
| Legal status | |
| Legal status | |
| Identifiers | |
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| CAS Number | |
| PubChemCID | |
| CompTox Dashboard(EPA) | |
| Chemical and physical data | |
| Formula | C29H41O3 |
| Molar mass | 437.644 g·mol−1 |
| 3D model (JSmol) | |
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Trenbolone undecanoate, ortrenbolone undecylate, is asyntheticinjectedanabolic–androgenic steroid (AAS) that is aderivative ofnandrolone (19-nortestosterone) which was never marketed.[1][2] It is the C17βundecanoate (undecylate)ester and a long-actingprodrug oftrenbolone.[1][2] The drug was described by researchers atRoussel 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 theblack market for use bybodybuilders andathletes.[2]
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