Cyclobutane-1,2-dicarboxylic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4462-96-8 |
| Product name | Cyclobutane-1,2-dicarboxylic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial 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 Cyclobutane-1,2-dicarboxylic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Cyclobutane-1,2-dicarboxylic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Cyclobutane-1,2-dicarboxylic anhydride
| Industry | Application | Process |
|---|---|---|
| Synthetic Materials | Used as a modifying monomer for unsaturated polyester resins | Copolymerized with diols to incorporate cyclic structures, thereby enhancing thermal resistance and mechanical strength of the resin |
| Rubber Additives | Used as an epoxy resin curing agent or crosslinking agent | Undergoes addition reaction with epoxy groups under thermal conditions to form a three-dimensional network structure |
| Pharmaceutical Intermediates | Used to synthesize cyclobutane structural motifs in drug molecules | Acylation reactions employed to construct compounds containing a cyclobutane backbone |
| Organic Synthesis | Used as an anhydriding reagent | Introduces anhydride functionality or constructs cyclic lactone structures in fine chemical synthesis |
Manufacturing Quality Control of Cyclobutane-1,2-dicarboxylic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at 210 nm. |
| Appearance | Visual inspection | Assessment of physical state and color by observation under controlled lighting against a white background. |
| Melting Point | Capillary melting point apparatus | Determination of temperature range at which solid transitions to liquid, measured using calibrated capillary tube method. |
| Loss on Drying | Gravimetric thermogravimetry | Mass loss measured after drying sample at 60 C under vacuum for 2 hours. |
| Residue on Ignition | Sulfated ash gravimetry | Residue mass after high-temperature incineration (700-800 C) following sulfuric acid treatment. |
| Water Content | Karl Fischer titration | Volumetric or coulometric determination of water via iodine-sulfur dioxide reaction in pyridine-methanol medium. |
| Acid Number | Acid-base titration | Titration with standardized potassium hydroxide solution to neutralize acidic impurities, expressed as mg KOH/g. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion, using plasma excitation and optical emission detection. |
| Chloride Content | Ion chromatography | Separation and conductivity detection of chloride anions after aqueous extraction and filtration. |
| Related Substances | HPLC with UV detection | Identification and quantification of structurally related impurities using gradient elution and reference standards. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution at specified concentration and path length. |
| Solvent Residues (e.g., THF) | GC-FID | Quantification of residual solvents by gas chromatography with flame ionization detection using internal standard calibration. |
Technical Specifications of Cyclobutane-1,2-dicarboxylic anhydride
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 72-76°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 Cyclobutane-1,2-dicarboxylic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Cyclobutane-1,2-dicarboxylic anhydride
Safety Information of Cyclobutane-1,2-dicarboxylic anhydride
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Cyclobutane-1,2-dicarboxylic anhydride
Industrial Cyclobutane-1,2-dicarboxylic anhydride 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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