4-Hydroxy-2-pyrrolidone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 25747-41-5 |
| Product name | 4-Hydroxy-2-pyrrolidone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeReagent GradeIndustrial 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 4-Hydroxy-2-pyrrolidone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxy-2-pyrrolidone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxy-2-pyrrolidone
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for synthesizing γ-aminobutyric acid (GABA) receptor modulators, antiepileptic agents, and neuroprotective agents | Organic synthesis, including cyclization, acylation, or alkylation reactions to construct nitrogen-containing heterocyclic structures |
| Pesticides | Used to synthesize biologically active pyrrolidinone derivatives as precursors for insecticides or herbicides | Key intermediate in multistep synthesis, participating in construction of the pesticide molecular scaffold |
| Fine Chemicals | Production of polymer monomers, surfactants, or functional additives | Ring-opening polymerization or reaction with other functional groups to impart specific performance characteristics |
| Chemical Research | Used as an organic building block for constructing libraries of complex nitrogen-containing heterocyclic compounds | Employed in laboratory-scale studies to explore synthetic routes and biological activity of novel heterocyclic compounds |
Manufacturing Quality Control of 4-Hydroxy-2-pyrrolidone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 210 nm, calibrated against certified reference standard. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on the stoichiometric reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750 C in a platinum crucible, then weighing inorganic residue after complete combustion of organic matter. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy measuring absorbance of ground-state atoms vaporized in flame or graphite furnace. |
| Chloride Impurity | Ion Chromatography (IC) | Separation of chloride ions on anion-exchange column with conductivity detection, quantified via external calibration. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally related impurities using HPLC with diode-array detection and peak purity assessment. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually under controlled heating rate. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passed through solution, indicating chiral purity and enantiomeric excess. |
| pH (10% aqueous solution) | Potentiometric pH Measurement | Electrometric determination using calibrated glass electrode and pH meter in standardized aqueous solution. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against established reference standards under controlled lighting conditions. |
| Solubility in Water | Qualitative Solubility Test | Observation of complete dissolution in specified volume of water at defined temperature and agitation time. |
| Residual Solvents (e.g., ethanol, acetone) | GC-FID | Separation and quantification by gas chromatography with flame ionization detection using internal standard calibration. |
Technical Specifications of 4-Hydroxy-2-pyrrolidone
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 47.0–49.0°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic mild odor |
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 4-Hydroxy-2-pyrrolidone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxy-2-pyrrolidone
Packaging of 4-Hydroxy-2-pyrrolidone
Industrial 4-Hydroxy-2-pyrrolidone 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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