5,5-Dimethyl-2-pyrrolidinone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5165-28-6 |
| Product name | 5,5-Dimethyl-2-pyrrolidinone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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 5,5-Dimethyl-2-pyrrolidinone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5,5-Dimethyl-2-pyrrolidinone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5,5-Dimethyl-2-pyrrolidinone
| Industry | Application | Process |
|---|---|---|
| Electronic Chemicals | Component of photoresist strippers | Used as a high-boiling, low-toxicity polar solvent in semiconductor manufacturing for photoresist removal |
| Pharmaceutical Intermediates | Key solvent and reaction medium for synthesizing the antiepileptic drug levetiracetam | Provides a homogeneous reaction environment during condensation and cyclization steps to improve yield and selectivity |
| High-Performance Polymers | Polymerization solvent for specialty engineering plastics such as polyamide and polyimide | Dissolves monomers and prepolymers during high-temperature condensation polymerization to optimize molecular weight distribution and material properties |
| Pesticide Synthesis | Synthesis aid for herbicides, fungicides, and other agrochemicals | Acts as a reaction solvent to facilitate nucleophilic substitution and acylation reactions, enhancing product purity |
| Coatings & Inks | Leveling agent and film-forming aid in premium industrial coatings and electronic inks | Adjusts system viscosity and evaporation rate to improve coating uniformity and adhesion |
Manufacturing Quality Control of 5,5-Dimethyl-2-pyrrolidinone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water in the sample. |
| Acidity (as HCl) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and potentiometric or visual endpoint detection. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after controlled high-temperature incineration of a weighed sample. |
| Color (APHA) | Visual Comparison or Spectrophotometry (430 nm) | Comparison of sample color intensity against APHA platinum-cobalt standards or measurement of absorbance at 430 nm. |
| Density at 20 degC | Digital Density Meter | Measurement of mass per unit volume using oscillating U-tube principle calibrated with air and water standards. |
| Refractive Index at 20 degC | Refractometry | Determination of light bending angle at air-sample interface using calibrated Abbe refractometer or digital instrument. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion, based on characteristic atomic emission intensities in argon plasma. |
| Chloride Content | Ion Chromatography (IC) | Separation and conductivity detection of chloride anions following aqueous extraction and filtration. |
| Non-Volatile Residue | Gravimetric Evaporation | Weighing of residue after evaporation of a known sample volume to dryness under controlled temperature and vacuum. |
| Aldehyde Impurities | GC-MS | Separation by GC followed by identification and quantification via electron ionization mass spectrometry using selected ion monitoring. |
| Residual Solvents (e.g., acetone, methanol) | Headspace GC-FID | Thermal equilibration of sample in sealed vial, followed by gas-phase injection and FID detection of volatile organics. |
Technical Specifications of 5,5-Dimethyl-2-pyrrolidinone
| Test Item | Specification |
|---|---|
| Appearance | Colorless crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 27.0–29.0°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Refractive Index (n20/D) | 1.468–1.472 |
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 5,5-Dimethyl-2-pyrrolidinone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 5,5-Dimethyl-2-pyrrolidinone
Packaging of 5,5-Dimethyl-2-pyrrolidinone
Industrial 5,5-Dimethyl-2-pyrrolidinone 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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