Testosterone Undecanoate Powder

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Testosterone undecanoate, or testosterone undecylate, is an androgen and anabolic steroid and a testosterone ester. It is used to replace or supplement the testosterone that is naturally made in the body. Therefore, testosterone undecanoate is effective in development of male sex organs and characteristics as well as male organs of penis, testicles, prostate, body hair, vocal cord thickening, and muscle and fat distribution, etc. Testosterone undecanoate is different from other oral anabolic steroids. First and foremost, other oral anabolic steroid products are almost always C-17 alpha alkylated and Testosterone undecanoate does not possess C-17 alpha alkylation despite it being an orally active form of Testosterone, instead, it is an esterified form of Testosterone. So, testosterone undecanoate is better than other anabolic steroids in treating low testosterone.

Testosterone Undecanoate Properties

Product Name Testosterone Undecanoate
Brand Names Aveed, Andriol and many others
Appearance White To Off-white Crystalline Powder
CAS Number 5949-44-0
Formula C30H48O3
Molar mass 456.70032 g/mol
Biological Half-life 1–12 days
Detection Time Approx. 2-3 months
Effective Dose (Men) 40-120mg per day
Effective Dose (Women) Not suggested
Purity 97.6%
Anabolic /Androgenic Ratio 100:100

Testosterone Undecanoate Uses
Testosterone undecanoate’s uses are various, such as the treatment of male hypogonadism, and has also been investigated for use as a male contraceptive or as hormone replacement therapy in transgender men, as well as the develop and maintain male sexual characteristics (masculinity), such as a deep voice and body hair. It also helps to maintain muscle and prevent bone loss, and is necessary for natural sexual ability/desire. But its use among athletes and bodybuilders is very far and few in between for the reason that testosterone undecanoate’s disadvantage is that of very poor and very low oral bioavailability combined with a relatively high cost for this compound. Bodybuilders and athletes have therefore always opted for the more dependable, cheaper, and easily-accessible injectable Testosterone products and formulations that provide far higher (near-100%) bioavailability.

Testosterone Undecanoate COA

Test Items Specification Results
Description Sterilized and injectable grade and white or practically white crystalline powder
Identification IR Spectrum HPLC Positive
Solubility Practically insoluble in water, very soluble in acetone chloride, freely soluble in fatty oils Positive
Specific Rotation +82°~+88° +84.5°
Loss on drying <=0.05% <=0.21%
Melting point 34~39℃ 35~38℃
Assay 97.0%~102.0% 99.18%
Specific Rotation +77°~+82° +78.9°
Free Heptanes Acid <=0.6ml Confirms
Related Substance(TLC) Impurities A, B, C, D, E, F, G<=0.5%
Disregard limit<=0.05%
Conclusion This batch complies with BP2009

Testosterone Undecanoate HPLC

Chemical Characteristics
Testosterone Undecanoate is merely an esterified variant of Testosterone, whereby Testosterone has been affixed with the Undecanoate ester at the 17-beta hydroxyl group. It is vastly different from all other oral anabolic steroids because it does not contain methylation (C-17 alpha alkylation) on the 17th carbon, and therefore does not exhibit any of the negative effects on the liver that C-17 alpha alkylated compounds do. It also does not exhibit the same method of absorption and avoidance of the first pass of the liver that C-17 alpha alkylated oral compounds do. Instead, because of Testosterone Undecanoate ‘s very long-chain fatty acid ester, it is extremely lipophilic and enters the body via the lymphatic system through the GI tract.
It’s molecular structure is as follows:

Testosterone Undecanoate Dosage Details
Medically, Testosterone Undecanoate dosages are prescribed in the range of 120 – 160 mg per day for the first 2 to 3 weeks. Following this initial period, prescription guidelines call for a reduction of Testosterone Undecanoate dosage to a maintenance schedule of 40 – 120mg per day.
For performance and physique enhancement, the Testosterone Undecanoate dosage must understandably be far greater. A minimum of 250mg per day is required to see any measurable effect, and many individuals claim that the results at this range are on the low end. Commonly, Testosterone Undecanoate is used at a dosage of 400 – 500mg per day. Advanced or experienced users may require even higher dosages than that.
Due to the lipophilic nature of Testosterone Undecanoate’s pharmacology, it is recommended that Testosterone Undecanoate dosages be administered with the consumption of food / meals, ideally with a higher fat content in order to maximize its absorption in the body through the lymphatic system. When taken on an empty stomach, studies have demonstrated extremely low absorption and bioavailability of Testosterone Undecanoate. Testosterone Undecanoate dosages should also be split into two evenly spaced dosages (e.g. morning and evening) in order to maintain steady and stable blood serum levels of Testosterone.

Testosterone Undecanoate Recipe
The recipe of Testosterone undecanoate 250mg/ml, for reference only:
Testosterone undecanoate 20 ml @ 250 mg/ml
5 grams testosterone enanthate
15.25 ml sesame oil
Benzyl Alcohol 1ml 5% BA