11-Ketodihydrotestosterone-d₃  (Synonyms: 11-KDHT-d₃; 5α-Dihydro-11-keto testosterone-d₃)

11-Ketodihydrotestosterone-d₃ is the deuterium labeled 11-Ketodihydrotestosterone. 11-Ketodihydrotestosterone (11-KDHT; 5α-Dihydro-11-keto testosterone) is an endogenous steroid and a metabolite of 11β-Hydroxyandrostenedione. 11-Ketodihydrotestosterone is an active androgen and is also a potent androgen receptor (AR) agonist with a Ki of 20.4 nM and an EC50 of 1.35 nM for human AR. 11-Ketodihydrotestosterone drives gene regulation, protein expression and cell growth in androgen-dependent prostate cancer cells[1][2].

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

307.44

C₁₉H₂₅D₃O₃

2479914-02-6

O[C@]1(C([2H])(C[C@@]([H])([C@@]2(CC[C@]3(CC(CC[C@@]3([C@]24[H])C)=O)[H])[H])[C@@]1(CC4=O)C)[2H])[2H]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.  [Content Brief]

  [2]. Pretorius E, et al. 1-Ketotestosterone and 11-Ketodihydrotestosterone in Castration Resistant Prostate Cancer: Potent Androgens Which Can No Longer Be Ignored. PLoS One. 2016 Jul 21;11(7):e0159867.  [Content Brief]

  [3]. du Toit T, et al. Profiling adrenal 11β-hydroxyandrostenedione metabolites in prostate cancer cells, tissue and plasma: UPC2-MS/MS quantification of 11β-hydroxytestosterone, 11keto-testosterone and 11keto-dihydrotestosterone. J Steroid Biochem Mol Biol. 2  [Content Brief]