TETRAMETHYL-1,3-CYCLOBUTANEDIONE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 933-52-8 |
| Product name | TETRAMETHYL-1,3-CYCLOBUTANEDIONE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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 TETRAMETHYL-1,3-CYCLOBUTANEDIONE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk TETRAMETHYL-1,3-CYCLOBUTANEDIONE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Synthesis of drug molecules | Introduced into drug molecules via organic synthesis to incorporate the tetramethyl-1,3-cyclobutadienyl group, thereby enhancing biological activity or modifying pharmacological properties |
| Materials Science | Preparation of specialty polymers and materials | Used as a monomer or reactive additive in polymerization reactions under specific conditions to produce high-performance polymeric materials |
| Fine Chemicals | Production of functional chemicals | Employed in the synthesis of functional fine chemicals—such as surfactants and catalysts—with process parameters tailored to the target product’s properties and end-use requirements |
Manufacturing Quality Control of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative separation and detection based on volatility and retention time relative to certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in anhydrous methanol-pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile residue determined after controlled high-temperature ashing of sample. |
| Heavy Metals | ICP-OES | Multi-element quantification by measuring atomic emission intensities of metal ions in plasma-excited sample solution. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using ion-exchange column and conductivity detection. |
| Acidity (as HCl) | Acid-Base Titration | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color | Visual Comparison or Spectrophotometry (APHA scale) | Comparison of sample color against platinum-cobalt standard solutions or measurement of absorbance at 455 nm. |
| Density | Digital Density Meter | Determination of mass per unit volume at specified temperature using oscillating U-tube principle. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface to infer purity and composition. |
| Volatile Impurities | Headspace Gas Chromatography (HS-GC) | Analysis of low-boiling contaminants by GC after thermal equilibration in sealed vial. |
| Residual Solvents | GC-FID with Headspace Sampling | Identification and quantification of common solvents (e.g., acetone, hexane) using calibrated external standards. |
| Thermal Stability | Thermogravimetric Analysis (TGA) | Monitoring mass loss as function of temperature under controlled nitrogen atmosphere to assess decomposition onset. |
Technical Specifications of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (GC-MS) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Water Content (KF) | <=0.5% |
| Melting Point | 128–132°C |
| Identification (NMR) | Conforms to reference spectrum |
| Identification (IR) | Conforms to reference spectrum |
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 TETRAMETHYL-1,3-CYCLOBUTANEDIONE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
Safety Information of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of TETRAMETHYL-1,3-CYCLOBUTANEDIONE
Industrial TETRAMETHYL-1,3-CYCLOBUTANEDIONE 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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