Dimethyl acetylenedicarboxylate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 762-42-5 |
| Product name | Dimethyl acetylenedicarboxylate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material 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) |
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Documents We Provide for Dimethyl acetylenedicarboxylate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dimethyl acetylenedicarboxylate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dimethyl acetylenedicarboxylate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used as an intermediate in the synthesis of antiviral agents and antibiotics |
| Chemicals | Synthesis of resins and plastic additives | Applied in the production of unsaturated polyester resins and epoxy resins |
| Coatings | Formulation of high-performance coatings | Employed as a crosslinker or modifier in coating formulations |
| Printing Inks | Enhancement of ink performance | Used to improve ink adhesion and durability |
| Textiles | Synthesis of dyes and finishing agents | Applied in the synthesis of reactive dyes and textile finishing agents |
| Polymers | Synthesis of specialty polymeric materials | Utilized as a monomer or crosslinker in the synthesis of specialty polymeric materials |
Manufacturing Quality Control of Dimethyl acetylenedicarboxylate
| Test Item | Common Testing Method | Method Description |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and state of the sample under natural light or a standard light source to determine if it is a colorless to light yellow liquid, and check for turbidity, sediment, or impurities. |
| Content (Purity) | Gas Chromatography (GC) | Use capillary column gas chromatography with a hydrogen flame ionization detector (FID). Qualitative analysis is based on retention time, and quantitative analysis is performed using peak area normalization or external standard method to determine the main component content. |
| Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Suitable for detecting thermally unstable or non-volatile impurities; use a reverse-phase column (e.g., C18) with a UV detector and gradient elution to analyze relevant impurities. |
| Moisture | Karl Fischer Titration | Determine trace amounts of moisture in the sample using electrochemical titration. It is suitable for accurate measurement of moisture in organic solvents. |
| Acid Value/Free Acid | Acid-Base Titration | Titrate the sample with a standard sodium hydroxide ethanol solution using phenolphthalein as an indicator to calculate the free carboxylic acid content, reflecting the degree of hydrolysis. |
| Density | Densitometer Method or Pycnometer Method | Determine the liquid density at a specified temperature (e.g., 20°C) to assist in assessing purity and consistency. |
| Refractive Index | Refractometry | Measure the refractive index using an Abbe refractometer at a standard temperature (e.g., 20°C) as a physical constant for identification and initial screening of purity. |
| Infrared Spectroscopy (IR) | Fourier Transform Infrared Spectroscopy (FT-IR) | Apply the sample as a film or dissolve it in an appropriate solvent to measure the infrared absorption spectrum and compare it with a standard spectrum to confirm characteristic molecular structure peaks. |
| Boiling Point/Boiling Range | Distillation Method | Use a standard distillation apparatus to measure the initial boiling point and dry point to determine the boiling range, reflecting the purity and volatility of components. |
| Residual Solvent | Gas Chromatography (Headspace Sampling) | Detect residual organic solvents (e.g., methanol, dichloromethane) from the production process using headspace sampling-GC/FID method. |
Technical Specifications of Dimethyl acetylenedicarboxylate
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.445–1.455 |
| Relative Density (20°C/25°C) | 1.12–1.14 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 Dimethyl acetylenedicarboxylate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dimethyl acetylenedicarboxylate
Safety Information of Dimethyl acetylenedicarboxylate
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of Dimethyl acetylenedicarboxylate
Industrial Dimethyl acetylenedicarboxylate 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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