China Factory Direct
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| CAS number | 560-62-3 |
| Product name | 9-hydroxy-4-androstene-3,17-dione |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Intermediate in the synthesis of steroid-based drugs | Preparation of steroid hormones via chemical synthesis or biotransformation |
| Cosmetics Industry | Development of anti-inflammatory and anti-allergic active ingredients | Semi-synthetic derivatives used for formulation optimization |
| Research Sector | Biochemical research | Labeling and analysis of steroid compound metabolic pathways |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies 9-hydroxyandrostenedione by reversed-phase HPLC with UV detection at 240-254 nm, using a calibrated standard reference material. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., 4-androstenedione, testosterone, degradation products) via gradient HPLC separation and UV response. |
| Residual Solvents | GC-FID | Measures residual organic solvents (e.g., methanol, acetone, ethyl acetate) using gas chromatography with flame ionization detection against certified standards. |
| Water Content | Karl Fischer Titration | Determines trace water by coulometric or volumetric titration with iodine generated electrochemically in pyridine-free reagent. |
| Heavy Metals | ICP-MS | Quantifies elemental impurities (Pb, Cd, Hg, As, etc.) at sub-ppb levels after acid digestion, using inductively coupled plasma mass spectrometry. |
| Chloride Content | Ion Chromatography | Separates and quantifies chloride ions using suppressed conductivity detection after aqueous extraction and filtration. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after controlled charring and sulfuric acid treatment, followed by high-temperature ignition and weighing. |
| Optical Rotation | Polarimetry | Determines specific optical rotation using sodium D-line light to confirm chiral integrity and absence of racemization. |
| Melting Point | Capillary Melting Point Apparatus | Measures temperature range of solid-to-liquid transition to verify crystalline identity and purity. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine D10, D50, D90 values based on light scattering intensity vs. particle size. |
| Microbial Contamination | Membrane Filtration | Detects aerobic microorganisms by filtering sample through sterile membrane, then culturing on soybean-casein digest agar under controlled conditions. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Measures hydrogen ion activity in a standardized suspension (e.g., 1% w/v in water) using calibrated pH electrode and buffer reference. |
| Test Item | Specification |
|---|---|
| Appearance | Slightly white or almost white crystalline powder |
| Purity | >=98.5% (LC-MS) |
| Melting Point | 142–146°C |
| Optical Rotation | +163° to +167° (c=1, in chloroform) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() ![]() |
| Signal Word | Danger |
| Safety Data Sheet | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.