CompoundsTestosterone cypionate CAS 58-20-8

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Testosterone cypionate



Testosterone cypionate is an anabolic steroid that is classified as a male hormone (androgen). Testosterone cypionate is an injectable solution whose brand name is Depo-testosterone. The generic drug is administered to enhance performance in athletics and bodybuilding, and as a prescription drug that alleviates the symptoms of hypogonadism in men.


Testosterone cypionate CAS 58-20-8 Product Information

Product Name: Testosterone cypionate
Synonyms:  Methyltestosterone, Powder;17β-(3-Cyclopentylpropionyloxy)androst-4-en-3-one;Cypionic acid teststerone;Testosterone 17-(3-cyclopentylpropionate);Testosterone Cypionate CIII (200 mg);Testosterone Cypionate (CIII), Powder, USP;(8R,9S,10R,13S,14S,17S)-10,13-diMethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl 3-cyclopentylpropanoate;Testosterone cypionate Depo-Testosterone
CAS NO: 58-20-8
Molecular Weight: 412.6
Molecular Formula:  C27H40O3
Boiling Point: 492.01°C (rough estimate)
Melting point: 101-102°
Density: 0.9795 (rough estimate)
Appearance: A crystalline solid
Purity: >98%
Solubility: DMF: 25 mg/mL; DMSO: 5 mg/mL; Ethanol: 15 mg/mL; Ethanol:PBS (pH 7.2)(1:2): 0.3 mg/mL
Storage: 2-8°C

testosterone cypionate benefits

Testosterone cypionate is a form of exogenous testosterone that is commonly used for testosterone replacement therapy in individuals with low testosterone levels. It offers several potential benefits, including:

  1. Increased muscle mass and strength: Testosterone is an anabolic hormone that promotes muscle protein synthesis and helps increase muscle mass and strength. Testosterone cypionate can support muscle growth and enhance physical performance, especially when combined with regular exercise and strength training.
  2. Improved bone density: Testosterone plays a crucial role in maintaining bone health. Adequate levels of testosterone contribute to proper bone mineralization and density. Testosterone cypionate can help increase bone density and reduce the risk of osteoporosis and fractures.
  3. Enhanced libido and sexual function: Testosterone is a key hormone involved in sexual desire (libido) and sexual function. Low testosterone levels can lead to decreased libido and sexual dysfunction. Testosterone cypionate can help improve sexual desire, erectile function, and overall sexual satisfaction.
  4. Increased energy and vitality: Testosterone has an impact on energy levels, mood, and overall sense of well-being. Testosterone cypionate can potentially increase energy levels, improve mood, and enhance overall vitality and quality of life.
  5. Improved cognitive function: Testosterone plays a role in cognitive function, including memory, attention, and spatial abilities. Some studies suggest that testosterone replacement therapy, including the use of testosterone cypionate, may have positive effects on cognitive function in individuals with low testosterone levels.

testosterone cypionate vs enanthate

Testosterone cypionate and testosterone enanthate are both long-acting esterified forms of testosterone, which are used for testosterone replacement therapy and in some cases for performance enhancement. While they are similar in many ways, there are a few differences between testosterone cypionate and enanthate:

  1. Ester Chain: The main difference between testosterone cypionate and enanthate lies in their ester chain. Testosterone cypionate has a longer ester chain, consisting of 8 carbon atoms, whereas testosterone enanthate has a slightly shorter ester chain with 7 carbon atoms. This difference in the ester chain can affect the release and duration of action of the hormone.
  2. Half-Life: Due to the difference in their ester chains, testosterone cypionate has a slightly longer half-life compared to testosterone enanthate. The half-life of testosterone cypionate is approximately 8 days, whereas testosterone enanthate has a half-life of around 7 days. This means that testosterone cypionate may stay active in the body for a slightly longer duration.
  3. Injection Frequency: Because of the differences in their half-lives, testosterone cypionate is typically administered less frequently than testosterone enanthate. Testosterone cypionate is commonly injected every 7-10 days, while testosterone enanthate is usually administered every 7 days. This may vary depending on the individual’s specific needs and the doctor’s recommendation.
half life testosterone cypionate

The half-life of testosterone cypionate is approximately 8 days. This means that it takes approximately 8 days for half of the administered dose of testosterone cypionate to be eliminated from the body. After several half-lives, the medication is considered to be mostly cleared from the system. It’s important to note that individual factors, such as metabolism and other physiological characteristics, can influence the exact duration of action and clearance of testosterone cypionate in each person.
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