An Analytical Reference Standard
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Isomer(s)
31731Testosterone Caproate
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Testosterone Isocaproate

Item No. 22547

Restricted Product (Schedule III)
Product Insert (PDF)GC-MS (PDF)Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • NSC 26641
  • Testosterone 17-Isocaproate
  • Testosterone 4-methylpentanoate
Technical Information
Formal Name
(17β)-[(4-methyl-1-oxopentyl)oxy]-androst-4-en-3-one
CAS Number
15262-86-9
Molecular Formula
C25H38O3
Formula Weight
386.6
Purity
≥98%
Formulation
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: 30 mg/mLDMSO: 30 mg/mLEthanol: 30 mg/mLEthanol:PBS (pH 7.2) (1:3): 0.25 mg/mL
λmax
241 nm
SMILES
O=C1CC[C@@]2(C)C(CC[C@]3([H])[C@]2([H])CC[C@@]4(C)[C@@]3([H])CC[C@@H]4OC(CCC(C)C)=O)=C1
InChi Code
InChI=1S/C25H38O3/c1-16(2)5-10-23(27)28-22-9-8-20-19-7-6-17-15-18(26)11-13-24(17,3)21(19)12-14-25(20,22)4/h15-16,19-22H,5-14H2,1-4H3/t19-,20-,21-,22-,24-,25-/m0/s1
InChi Key
PPYHLSBUTAPNGT-BKWLFHPQSA-N
Regulatory Information
DEA Schedule
III
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Testosterone isocaproate (Item No. 22547) is an analytical reference standard categorized as an anabolic androgenic steroid that can be detected in blood.1,2 It is an ester of the naturally occurring androgen, testosterone (Item Nos. 15645 | ISO60154 | ISO60154) with a longer half-life.3 Formulations containing testosterone isocaproate have been tested for use in hypogonadism and delayed onset puberty.4,5 Anabolic steroids, including testosterone isocaproate, have been used to enhance physical performance in racehorses and athletes.6,7 Testosterone isocaproate is regulated as a Schedule III compound in the United States. This product is intended for research and forensic applications.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Tretzel, L., Thomas, A., Geyer, H., et al. Use of dried blood spots in doping control analysis of anabolic steroid esters. J. Pharm. Biomed. Anal. 96, 21-30 (2014).

    2. Forsdahl, G., Erceg, D., Geisendorfer, T., et al. Detection of testosterone esters in blood. Drug Test Anal. 7(11-12), 983-989 (2015).

    3. Behre, H.M., and Nieschlag, E. Testosterone preparations for clinical use in males. Testosterone: Action, Deficiency, Substitution (2012).

    4. Aydogdu, A., Bolu, E., Sonmez, A., et al. Effects of three different medications on metabolic parameters and testicular volume in patients with hypogonadotropic hypogonadism: 3-year experience. Clin. Endocrinol. (Oxf.) 79(2), 243-251 (2013).

    5. Büyükgebiz, A. Treatment of constitutional delayed puberty with a combination of testosterone esters. Horm. Res. 44(Suppl. 3), 32-34 (1995).

    6. Ludes, B., Kintz, P., Gromb, S., et al. Hair analysis of seven bodybuilders for anabolic steroids, ephedrine, and clenbuterol. J. Forensic Sci. 47(1), 211-214 (2002).

    7. You, Y., Uboh, C.E., Soma, L.R., et al. Simultaneous separation and determination of 16 testosterone and nandrolone esters in equine plasma using ultra high performance liquid chromatography-tandem mass spectrometry for doping control. J. Chromatogr. A. 1218(26), 3982-3993 (2011).