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Androst-4-En-17-One CAS NO 5225-35-4
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CAS No.:5225-35-4
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Androst-4-En-17-One is a key steroid intermediate, specifically a 17-ketosteroid, with significant importance in organic synthesis. This compound serves as a crucial building block for the production of more complex steroid hormones and active pharmaceutical ingredients (APIs). It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for the development of therapeutic agents and advanced chemical products.
Application
- Pharmaceutical Intermediate: A vital precursor in the synthesis of various steroid-based drugs, including anabolic agents and hormone therapies.
- Research & Development: Used as a reference standard and starting material in biochemical and pharmacological research to study steroid metabolism and activity.
- Fine Chemical Synthesis: Employed in multi-step organic synthesis to create novel steroid derivatives and specialty chemicals.
- API Manufacturing: Serves as a key intermediate in the commercial-scale production of Active Pharmaceutical Ingredients (APIs) under Good Manufacturing Practice (GMP) conditions.
- Biochemical Studies: Utilized in laboratory settings to investigate enzyme interactions, receptor binding, and metabolic pathways involving 17-ketosteroids.
Basic Information
| Product Name | Androst-4-En-17-One |
| CAS No. | 5225-35-4 |
| Molecular Formula | C19H28O |
| Molecular Weight | 272.43 g/mol |
| Synonyms | Androst-4-en-17-one; 4-Androsten-17-one; 17-Oxoandrost-4-ene; Etioallocholan-17-one; 17-Ketoandrost-4-ene; Androst-4-en-17-one (8CI); 4,5-Didehydro-17-oxoandrostane |
| EINECS | 226-034-8 |
Quality Control
Our Androst-4-En-17-One is produced and tested to meet stringent quality standards suitable for research and pharmaceutical applications. Each batch undergoes comprehensive analysis including identification, purity assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are available upon request to ensure full traceability and compliance with your project requirements.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to moisture. Keep away from incompatible materials.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to structure |
| Assay (HPLC) | ≥ 98.0% |
| Melting Point | 168°C - 172°C |
| Loss on Drying | ≤ 0.5% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals | ≤ 20 ppm |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
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Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






