(-)-CATECHIN HYDRATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 18829-70-4 |
| Product name | (-)-CATECHIN HYDRATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeCosmetic GradeFood 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 (-)-CATECHIN HYDRATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (-)-CATECHIN HYDRATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (-)-CATECHIN HYDRATE
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food Additive | Direct addition or blending with other ingredients |
| Pharmaceutical Industry | Active Pharmaceutical Ingredient (API) or Excipient | Extraction and separation, or synthetic preparation |
| Cosmetics Industry | Raw Material for Skincare Products | Blending and formulation |
Manufacturing Quality Control of (-)-CATECHIN HYDRATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay | HPLC-UV | Quantifies (-)-catechin hydrate by reversed-phase HPLC with UV detection at 280 nm, using external standard calibration. |
| Chiral Purity | Chiral HPLC | Separates enantiomers on a chiral stationary phase and quantifies (-)-enantiomer purity relative to (+)-catechin and racemate. |
| Water Content | Karl Fischer Titration | Measures total water content via coulometric or volumetric titration with iodine-based reagent in anhydrous methanol. |
| Residual Solvents | GC-FID | Detects and quantifies residual solvents (e.g., ethanol, acetone) using gas chromatography with flame ionization detection. |
| Heavy Metals | ICP-MS | Determines trace levels of toxic metals (Pb, Cd, As, Hg) by inductively coupled plasma mass spectrometry after acid digestion. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after ignition with sulfuric acid treatment and high-temperature ashing. |
| Related Substances | HPLC-DAD | Identifies and quantifies structurally related impurities (e.g., epicatechin, catechin dimers) using diode array detection. |
| pH of Solution | Potentiometric Titration | Measures pH of aqueous solution (1% w/v) using calibrated glass electrode and standardized buffer reference. |
| Specific Optical Rotation | Polarimetry | Determines enantiomeric identity and purity by measuring rotation of plane-polarized light at 589 nm. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry or wet dispersed sample to determine D10, D50, D90 values based on light scattering patterns. |
| Microbial Limits | Membrane Filtration | Quantifies aerobic mesophilic bacteria and molds/yeasts using membrane filtration followed by incubation on selective agar media. |
| Loss on Drying | Thermogravimetric Analysis | Measures weight loss upon heating at 105 C under controlled airflow to determine volatile content excluding water. |
Technical Specifications of (-)-CATECHIN HYDRATE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 165-172°C |
| Optical Rotation | -45° to -52° (c=1, in methanol) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| 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 (-)-CATECHIN HYDRATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (-)-CATECHIN HYDRATE
Packaging of (-)-CATECHIN HYDRATE
Industrial (-)-CATECHIN HYDRATE 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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