Testosterone Base Powder is the pure, non-esterified form of testosterone and serves as the parent compound for numerous testosterone esters used in pharmaceutical development. Since it does not contain an ester chain, it has a higher concentration of active testosterone by molecular weight than esterified derivatives such as Testosterone Enanthate or Testosterone Cypionate.
This compound is supplied as a white to slightly off-white crystalline powder with a fine texture and high chemical purity. It has a molecular formula of C₁₉H₂₈O₂, a molecular weight of 288.42 g/mol, and a CAS Number of 58-22-0. Under proper storage conditions, Testosterone Base Powder remains chemically stable, making it suitable for pharmaceutical manufacturing, analytical testing, and scientific research applications where permitted.
Because Testosterone Base is the foundation of many testosterone-based pharmaceutical compounds, it is widely recognized within the pharmaceutical industry for its well-defined chemical structure and consistent physical properties. High-quality material should exhibit excellent batch-to-batch consistency, low impurity levels, and undergo identity and purity verification before release.
Testosterone Base Powder Certificate of Analysis
| Product Name | Testosterone Base | ||
| Batch No. | TB20240709 | Mfg. Date | 20240709 |
| Analysis date | 2024.7.11 | Exp Date | 2027.7.8 |
| Packing | 1kg/foil bag | Quantity | 300kg |
| Ref. Standard | USP32 | ||
| Test | Specification | Results of Analysis | |
| Appearance | The white or practically white crystalline powder | White crystalline powder | |
| Identification | UV, IR, TLC | Positive | |
| Melting Point | 153~157°C | 154~156℃ | |
| Specific Rotation | +101°~ +105° | +102.8° | |
| Loss on drying | ≤1.0% | 0.28% | |
| Residue on ignition | ≤0.2% | 0.16% | |
| Purity | 97~103% | 98.70% | |
| Conclusion | The specification conforms with the USP32 standard. | ||
| Q.C.Dept. Director: Zhang Hua | Checker: May Na | Identifier: zehna | |
Key Features
- Pure, non-esterified testosterone compound
- White to off-white crystalline powder
- Pharmaceutical-grade quality
- High purity with consistent batch quality
- Well-defined chemical structure
- Suitable for pharmaceutical and laboratory applications
- Stable when stored under recommended conditions
Storage Information
For optimal stability, Testosterone Base Powder should be stored in a tightly sealed container in a cool, dry environment away from excessive heat, moisture, and direct sunlight. Following the recommended storage conditions helps maintain product quality and physical stability throughout its shelf life.
Side Effects of Testosterone
Lack of appetite
Difficulty sleeping
Shrinking of the testicles
Sore joints and muscles
Enlarged breasts and tender breasts
Water retention or bloating
It can alter mood. Stop taking it right away if you notice changes in behaviors such as depression or aggression. [mayoclinic – testosterone] Related Products
Testosterone Propionate Powder
Testosterone Cypionate Powder
Testosterone Enanthate Powder
Frequently Asked Questions
What is Testosterone Base Powder?
Testosterone Base Powder is the non-esterified form of testosterone and is considered the parent molecule from which many testosterone esters are derived.
How does Testosterone Base differ from Testosterone Enanthate or Cypionate?
Unlike esterified forms, Testosterone Base contains no ester attachment. This results in a lower molecular weight and a higher percentage of testosterone per gram of compound.
What does Testosterone Base Powder look like?
It is typically supplied as a fine white to slightly off-white crystalline powder with high purity and consistent particle characteristics.
How should Testosterone Base Powder be stored?
Store it in a cool, dry place in a tightly sealed container, protected from moisture, heat, and direct sunlight to maintain stability.



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