WANG RESIN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 201058-08-4 |
| Product name | WANG RESIN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty 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 WANG RESIN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk WANG RESIN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of WANG RESIN
| Industry | Application | Process |
|---|---|---|
| Chemical Research | Organic Synthesis Intermediate | Used as a synthesis intermediate for functional polymers and fine chemicals; participates in condensation, esterification, and other reactions |
| Materials Science | Polymer Modifier | Applied as a monomer or crosslinker in the synthesis of polymers with tailored properties |
| Pharmaceutical R&D | Drug Delivery Vehicle and Prodrug Design | Employed as a degradable linker in controlled-release formulations or prodrug synthesis |
Manufacturing Quality Control of WANG RESIN
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Number-Average Molecular Weight (Mn) | Gel Permeation Chromatography (GPC) | Using THF or DMF as the mobile phase, molecular weight distribution is determined via a calibrated polystyrene standard curve to evaluate degree of polymerization and molecular weight control. |
| Weight-Average Molecular Weight (Mw) | Gel Permeation Chromatography (GPC) | The same GPC method provides Mw and polydispersity index (PDI), reflecting the breadth of the molecular weight distribution. |
| Melting Point (Tm) or Glass Transition Temperature (Tg) | Differential Scanning Calorimetry (DSC) | Measures heat flow changes under programmed temperature control to identify Tg or melting endotherms, assessing thermal properties and material purity. |
| Moisture Content | Karl Fischer Titration | Quantifies trace moisture in polymers using an iodine–sulfur dioxide–pyridine–methanol reagent system, ensuring drying processes meet specifications and preventing hydrolysis. |
| Residual Monomer (Benzyl Alcohol) | Gas Chromatography-Mass Spectrometry (GC-MS) | After solvent extraction, GC-MS analysis detects residual unreacted benzyl alcohol to ensure complete polymerization and product safety. |
| Hydroxyl Value (OH Value) | Anhydride Acylation Method (Acetic Anhydride-Pyridine Method) | Acetic anhydride reacts with hydroxyl groups to form acetate esters; excess anhydride is hydrolyzed and titrated with sodium hydroxide to calculate hydroxyl content per unit mass. |
| Color (Appearance) | Platinum-Cobalt Color Scale (Hazen Method) or Visual Comparison | Color is assessed by comparison with Pt-Co standard solutions, indicating raw material purity and extent of thermal degradation, commonly used for high-purity materials. |
| Ash Content (Inorganic Residue) | High-Temperature Ignition Method (ASTM E1176) | Sample is ignited at high temperature (550–800°C) in a muffle furnace until constant weight; residue is weighed to assess metal catalysts or inorganic impurities. |
| Solubility and Solution Stability | Solvent Dissolution Test + Viscosity Measurement | Evaluates solubility in common organic solvents (e.g., THF, chloroform, DMF); combined with Ubbelohde viscometer to measure intrinsic viscosity, indirectly estimating molecular weight. |
| Chemical Structure Confirmation | Fourier Transform Infrared Spectroscopy (FT-IR) | Confirms backbone structure through characteristic absorption peaks (e.g., ~1020 cm⁻¹ for C–O–C ether bond, ~1600, 1500 cm⁻¹ for aromatic ring skeleton). |
| Elemental Analysis (C, H, O) | Elemental Analyzer (CHN/O) | Determines weight percentages of carbon, hydrogen, and oxygen; compares results with theoretical values to verify chemical composition matches expected structure. |
| Thermal Stability | Thermogravimetric Analysis (TGA) | Records mass loss while heating under nitrogen or air atmosphere to evaluate decomposition temperature and thermal stability, indicating heat resistance. |
Technical Specifications of WANG RESIN
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 124–128°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| 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 WANG RESIN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of WANG RESIN
Industrial WANG RESIN 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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