16α-Hydroxyestrone-[2,3,4-13C3] Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1241684-28-5 |
| Product name | 16α-Hydroxyestrone-[2,3,4-13C3] |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical Grade |
| Packaging | 25KG/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) |
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Documents We Provide for 16α-Hydroxyestrone-[2,3,4-13C3]
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 16α-Hydroxyestrone-[2,3,4-13C3] Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 16α-Hydroxyestrone-[2,3,4-13C3]
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical R&D | Stable isotope-labeled internal standards for LC-MS/MS quantification of estrogenic compounds | Isotope dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis |
| Biological Analysis | Reference standards for instrument calibration or method accuracy verification | Detection and quantification by high-resolution mass spectrometry following sample preparation |
| Clinical Testing | Supporting measurement of endogenous estrogen metabolite levels in humans | LC-MS/MS determination after solid-phase extraction of serum or urine samples |
Manufacturing Quality Control of 16α-Hydroxyestrone-[2,3,4-13C3]
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main compound by UV absorbance relative to a certified reference standard using reversed-phase chromatography. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities based on retention time and UV response relative to the main peak. |
| Residual Solvents | GC-FID | Separates and quantifies volatile organic solvents using flame ionization detection with headspace sampling. |
| Water Content | Karl Fischer Titration | Measures water via coulometric or volumetric titration where iodine reacts stoichiometrically with water in anhydrous medium. |
| Heavy Metals | ICP-MS | Quantifies trace metal contaminants (e.g., Pb, Cd, Hg) by atomization and mass spectrometric detection of elemental ions. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration followed by precise weighing of residual residue. |
| Optical Rotation | Polarimetry | Measures specific rotation using plane-polarized light to confirm chiral integrity and enantiomeric purity. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating crystallinity and identity. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution of solid particles by measuring angular variation in laser light scattering intensity. |
| Microbial Limits | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to agar media, and colony enumeration after incubation. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Measures hydrogen ion activity in a defined suspension using calibrated glass electrode and pH meter. |
| Sterility | Direct Inoculation Method | Confirms absence of viable microorganisms by inoculating sample into culture media and monitoring for growth under controlled conditions. |
Technical Specifications of 16α-Hydroxyestrone-[2,3,4-13C3]
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 215-220°C |
| Identification (NMR) | Conforms to reference standard |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 16α-Hydroxyestrone-[2,3,4-13C3]
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of 16α-Hydroxyestrone-[2,3,4-13C3]
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 16α-Hydroxyestrone-[2,3,4-13C3]
Industrial 16α-Hydroxyestrone-[2,3,4-13C3] Procurement FAQ
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.
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