Dibutyl squarate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2892-62-8 |
| Product name | Dibutyl squarate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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) |
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Documents We Provide for Dibutyl squarate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dibutyl squarate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dibutyl squarate
| Industry | Application | Process |
|---|---|---|
| Electronic Chemicals | Used as a sensitizer or additive in photoresists for photolithography in semiconductor manufacturing | Photoresist formulation preparation |
| Coatings | Used as a crosslinker or modifier in high-performance coatings to enhance weather resistance and adhesion | Coating formulation mixing and curing |
| Pharmaceutical Intermediates | Serves as an intermediate in the synthesis of specific drug molecules, such as anticancer or antimicrobial compounds | Multistep organic synthesis |
| Polymers | Used as a monomer or modifier in the production of functional polymers, such as heat-resistant or optoelectronic materials | Polymerization or copolymerization |
| Research Reagents | Used as a reagent or catalyst in organic chemistry research for constructing complex molecules | Laboratory-scale synthesis |
Manufacturing Quality Control of Dibutyl squarate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component peak area against calibrated standard; separation based on volatility and polarity. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine-sulfur dioxide reaction specific to water. |
| 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 Spectrophotometric Measurement at 455 nm | Compares sample color intensity to platinum-cobalt standard scale under controlled lighting. |
| Residue on Ignition | Gravimetric Analysis after High-Temperature Ashing | Measures non-volatile inorganic residue remaining after combustion at 700-800 C. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomization and absorption of element-specific UV-Vis light. |
| Chloride Content | Potentiometric Titration with AgNO3 | Measures chloride ions via silver nitrate titration using silver/silver chloride electrode. |
| Refractive Index | Refractometry at 20 C | Determines ratio of light velocity in air vs. sample using calibrated prism instrument. |
| Density at 20 C | Digital Density Meter or Pycnometer | Measures mass per unit volume at specified temperature using oscillating U-tube or calibrated flask. |
| Flash Point | Cleveland Open Cup (COC) Method | Determines lowest temperature at which vapors ignite when exposed to flame under standardized conditions. |
| Distillation Range | Simple Distillation with Thermometer and Graduated Receiver | Measures initial and final boiling temperatures and recovered volume percentage under controlled heating. |
| Non-Volatile Residue | Evaporation and Gravimetric Weighing | Quantifies residue left after gentle evaporation of fixed sample volume under nitrogen stream. |
Technical Specifications of Dibutyl squarate
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.440–1.450 |
| Relative Density (20°C/25°C) | 0.97–0.99 g/cm³ |
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 Dibutyl squarate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dibutyl squarate
Packaging of Dibutyl squarate
Industrial Dibutyl squarate 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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