Testosterone undecanoate

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Testosterone undecanoate
Testosterone undecanoate.png
Systematic (IUPAC) name
(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl undecanoate
Clinical data
Pregnancy cat.
Legal status
Routes oral,I.V
Pharmacokinetic data
Bioavailability 7%
Metabolism Liver, Testis and Prostate
Half-life 1-12 days
Excretion Urine
CAS number 5949-44-0 N
ATC code G03BA03
PubChem CID 65157
ChemSpider 23089522 YesY
KEGG D06087 YesY
Chemical data
Formula C30H48O3 
Mol. mass 456.70032
 N (what is this?)  (verify)

Testosterone undecanoate or testosterone undecylate is an ester of testosterone. This hormone is used in androgen replacement therapy primarily for the treatment of male hypogonadism, and is currently under research for use as a male contraceptive. It is sold and distributed under the brand names Aveed, Andriol, Undestor, Nebido, Pantestone, Restandol, Cernos Depot, Nebido-R and Reandron 1000.[1]


  1. ^ Köhn, FM; Schill, WB (Nov 2003). "A new oral testosterone undecanoate formulation.". World J Urol 21 (5): 311–5. doi:10.1007/s00345-003-0372-x. PMID 14579074. 

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