China Factory Direct
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| CAS number | 3470-98-2 |
| Product name | 1-Butylpyrrolidin-2-one |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 |
|---|---|---|
| Electronic Chemicals | Component of semiconductor photoresist strippers | Used as a polar aprotic solvent in high-selectivity stripper formulations to remove residual photoresist and organic contaminants |
| Pharmaceutical Intermediates | Key intermediate in the synthesis of the antifungal drug terbinafine | Employed in N-alkylation reactions with reagents such as 1-naphthylmethyl chloride to prepare terbinafine precursors |
| Polymer Industry | High-performance solvent for engineering plastics such as polyamide and polyester | Applied in high-temperature fiber spinning, film casting, and resin solution preparation to enhance melt flow and film-forming properties |
| Agrochemicals | Reaction aid in the synthesis of imidacloprid derivatives | Used as a reaction medium to facilitate the condensation between chloropyridine and nitromethylene imidazole ring |
| Coatings & Inks | Leveling agent and co-solvent in premium automotive coatings and UV-curable inks | Blended with acrylic resins and epoxy acrylates to improve coating gloss and adhesion |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard using a polar capillary column. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based reagent. |
| Acidity (as H2SO4) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry at 430 nm | Measurement of yellowness by comparing sample absorbance at 430 nm to platinum-cobalt standards. |
| Density at 20 C | Digital Density Meter | Determination of mass per unit volume using oscillating U-tube principle calibrated with air and water. |
| Refractive Index at 20 C | Refractometry | Measurement of light bending angle at air-sample interface using calibrated Abbe refractometer. |
| Residue on Evaporation | Gravimetric Analysis | Weighing non-volatile residue after controlled evaporation of a fixed sample volume at 105 C. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after acid digestion by measuring atomic absorption at element-specific wavelengths. |
| Chloride (as Cl-) | Ion Chromatography (IC) | Separation and conductivity detection of chloride ions using an anion-exchange column and suppressed conductivity detector. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Quantitative analysis of volatile organic impurities via equilibrium partitioning into headspace followed by GC-FID. |
| Aldehyde Impurities | UV-Vis Spectrophotometry after DNPH derivatization | Derivatization of aldehydes with 2,4-dinitrophenylhydrazine to form UV-absorbing hydrazones measured at ~360 nm. |
| Non-Volatile Residue on Ignition | Ignition and Gravimetry | Weighing residue remaining after high-temperature ashing (550 C) to determine inorganic ash content. |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | ≥98.0% |
| Water | ≤0.5% |
| Color(Hazen) | ≤40 |
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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.