High-Purity Steroid Intermediate for Pharmaceutical Synthesis
Product Overview
Androstenedione (4-AD) is a widely used steroid pharmaceutical intermediate applied in the synthesis of hormonal APIs and steroid derivatives. As a reliable Androstenedione manufacturer in China, we supply high-purity 4-AD with consistent quality, controlled impurities, and stable production — supporting global pharmaceutical manufacturers and procurement specialists.
Typical Applications
- Intermediate for steroid hormone APIs
- Synthesis of testosterone-related derivatives
- Pharmaceutical R&D and process development
- Contract manufacturing and scale-up projects
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Androstenedione |
| Synonyms | 4-Androstene-3,17-dione; 4-AD |
| CAS No. | 63-05-8 |
| Molecular Formula | C₁₉H₂₆O₂ |
| Molecular Weight | 286.41 |
| Appearance | White to pale yellow crystalline powder |
| Assay (HPLC) | ≥ 99.0% |
| Melting Point | 170–174 °C |
| Loss on Drying | ≤ 0.5% |
| Residual Solvents | Meets pharmacopeial limits |
| Packaging | 1 kg / 5 kg / 25 kg or customized |
| Storage | Cool, dry, light-protected conditions |
Specifications can be customized according to customer or regulatory requirements.
Quality & Documentation
- Produced under strict quality management systems
- Full COA, MSDS, and analytical methods available
- Traceable batch records for regulated supply chains
- Experienced in global export of steroid intermediates
Why Work With Us
- Dedicated steroid intermediate production facilities
- Strong process know-how and impurity control
- Responsive international sales & technical support
- Efficient handling of samples, audits, and bulk orders
We help procurement teams reduce sourcing risk and improve supply reliability.
Contact Us
📩 Looking for a reliable Androstenedione (4-AD) supplier in China?
Contact us today to request samples, specifications, or a competitive quotation.
👉 Send your inquiry now and partner with a manufacturer who understands pharmaceutical procurement.
