Stigmasterol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 83-48-7 |
| Product name | Stigmasterol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeFood GradeCosmetic 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) |
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Documents We Provide for Stigmasterol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Stigmasterol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Stigmasterol
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Production of pharmaceutical intermediates | Used as a key raw material in the synthesis of vitamin D3 and in pharmaceutical synthesis processes |
| Cosmetics Industry | Antioxidant | Added to skincare products to provide antioxidant protection against free radical damage to the skin |
| Food Industry | Nutritional fortificant | Incorporated into food as a natural nutrient to enhance its nutritional value |
| Chemical Industry | Synthetic material | Used as a starting material for synthesizing other steroidal compounds and participates in various chemical reactions |
Manufacturing Quality Control of Stigmasterol
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with gradient elution employing methanol-water or acetonitrile-water as the mobile phase. Detection is performed using a UV detector (205–210 nm), and stigmasterol content is quantified by external or internal standard methods. This method offers high sensitivity and good reproducibility, suitable for precise quantification. |
| Purity Analysis | Gas Chromatography (GC) | Stigmasterol is derivatized (e.g., silylation) prior to analysis, followed by separation on a capillary column and detection by flame ionization detector (FID). Effectively separates sterol-related impurities and evaluates sample purity. |
| Structural Confirmation | Mass Spectrometry (MS) or LC-MS/MS | Combines liquid chromatography with mass spectrometry to confirm the molecular structure of stigmasterol based on molecular ion and fragment ion information. Commonly used for identification and structural analysis of impurities. |
| Crystal Form and Physical Appearance | Differential Scanning Calorimetry (DSC) | Measures melting temperature and thermal behavior of stigmasterol to assess crystalline form consistency and detect polymorphism, aiding in quality control. |
| Residual Solvents | Gas Chromatography (GC) | Determines residual organic solvents (e.g., methanol, ethanol, chloroform) possibly remaining from manufacturing processes according to pharmacopoeial methods (e.g., Chinese Pharmacopoeia, USP), ensuring product safety. |
| Moisture Content | Karl Fischer Titration | Accurately measures moisture content in the sample via titration. Helps control product stability and prevent degradation. |
| Heavy Metals and Impurities | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Detects residual heavy metals such as lead, arsenic, cadmium, and mercury to ensure compliance with safety standards for pharmaceuticals or health products. |
| Appearance and Characteristics | Visual Inspection and Melting Point Determination | Observes sample color and physical state; measures melting point (stigmasterol melts at approximately 160–170 °C), serving as a preliminary identification method. |
Technical Specifications of Stigmasterol
| Test Item | Specification |
|---|---|
| Appearance | White powder |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 138–142 °C |
| Optical Rotation | -48.0 to -53.0 ° (c=1, in chloroform) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 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 Stigmasterol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Stigmasterol
Packaging of Stigmasterol
Industrial Stigmasterol 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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