China Factory Direct
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| CAS number | 25655-42-9 |
| Product name | beta-cyclodextrin/ epichlorohydrin copolymer |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical 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) |
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 | Drug Carrier | Encapsulates drug molecules to enhance stability and bioavailability |
| Cosmetics Industry | Stabilizer | Stabilizes active ingredients in cosmetic formulations to prevent degradation |
| Food Industry | Encapsulating Agent | Encapsulates food additives to improve flavor release and stability |
| Pesticide Industry | Controlled-Release Material | Serves as a controlled-release carrier for pesticides to extend efficacy duration |
| Biotechnology | Separation and Purification | Applied in the separation and purification of biomolecules |
| Detection Item | Common Analytical Method | Method Overview |
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| Appearance | Visual Inspection | Assessment of physical state and color under controlled lighting conditions. |
| Moisture Content | Karl Fischer Titration | Quantification of water content via coulometric or volumetric titration with iodine-based reagent. |
| Loss on Drying | Gravimetric Analysis | Measurement of mass loss after heating at specified temperature and time under controlled atmosphere. |
| pH (1% aqueous solution) | pH Meter Measurement | Determination of hydrogen ion activity in a standardized aqueous dispersion using calibrated electrode. |
| Epoxy Group Content | Acid-Base Titration | Reaction of epoxy groups with HBr in acetic acid followed by back-titration with NaOH. |
| Chloride Content | Potentiometric Titration | Precipitation titration with AgNO3 using silver indicator electrode to detect endpoint. |
| Molecular Weight Distribution | Gel Permeation Chromatography (GPC) | Separation by hydrodynamic volume in solution, calibrated against polymer standards. |
| Residual Epoxy Chloropropane | Gas Chromatography (GC-FID) | Volatile organic impurity quantification using flame ionization detection after headspace or direct injection. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Thermal desorption of volatile residues followed by GC separation and FID detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element quantification after acid digestion using inductively coupled plasma optical emission spectroscopy. |
| Ash Content | Gravimetric Analysis | Mass measurement of inorganic residue remaining after high-temperature incineration in muffle furnace. |
| Viscosity (4% aqueous solution) | Rotational Viscometry | Shear stress measurement under defined shear rate and temperature using spindle-type viscometer. |
| Test Item | Specification |
|---|---|
| Appearance | White to off-white powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Solubility | Freely soluble in water; practically insoluble in ethanol and acetone |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.