China Factory Direct
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| CAS number | 108-59-8 |
| Product name | Dimethyl malonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood 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 |
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| Pharmaceuticals | Synthesis of barbiturate intermediates | Condensation and cyclization |
| Pesticides | Synthesis of insecticides and herbicides | Transesterification and alkylation |
| Dyes | Synthesis of azo dyes and fluorescent whitening agents | Condensation and diazotization-coupling |
| Fragrances | Synthesis of floral fragrance components | Claisen condensation and esterification |
| Polymers | Synthesis of functional monomers or crosslinkers | Free-radical polymerization and Michael addition |
| Organic Synthesis | Synthesis of 1,3-dicarbonyl compounds | Alkylation, hydrolysis, and decarboxylation |
| Test Item | Common Test Method | Method Overview |
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| Purity | Gas Chromatography (GC) | Uses a capillary column for separation and FID detector for quantification. The purity of the main component is calculated by peak area normalization or external standard method. Suitable for accurate determination of highly volatile organic compounds. |
| Moisture Content | Karl Fischer Titration | Based on electrochemical titration principle, determines trace moisture in samples through the quantitative reaction between iodine and water. Accuracy can reach ppm levels. It is the standard method for moisture determination in organic solvents. |
| Acidity / Free Acid | Acid-Base Titration | Free acid in the sample is titrated with a standard alkaline solution using phenolphthalein or potentiometric detection as indicator. Acid value or acidity is calculated to reflect product stability and extent of side reactions. |
| Color | Visual Color Comparison / Spectrophotometry | Compare with standard platinum-cobalt color solutions, or measure absorbance at a specific wavelength (e.g., 430 nm) to evaluate whether the product's color meets industrial or reagent grade requirements. |
| Density | Density Meter / Oscillating Density Meter | Measure sample density directly using a pycnometer or digital density meter at a specified temperature (e.g., 20°C), used for identification and batch consistency control. |
| Refractive Index | Abbe Refractometer Method | Measures the refractive index of the sample under constant temperature conditions. Serves as an auxiliary identification parameter and allows rapid assessment of purity or presence of impurities. |
| Boiling Range / Distillation Range | Atmospheric Distillation Method | Determine initial boiling point, final boiling point, and distillation temperature range using a standard distillation apparatus to verify volatility and compositional consistency of the product. |
| Residual Solvents or Impurities | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation by GC combined with MS for qualitative analysis; identifies and semi-quantifies potential organic impurities or residual solvents. Suitable for screening unknown impurities and structural confirmation. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) | After digestion or direct injection, measures concentrations of harmful heavy metal elements such as lead, arsenic, and mercury to ensure compliance with pharmaceutical or food additive safety standards. |
| Appearance and Physical State | Visual Inspection and Physical Observation | Check whether the sample is a colorless, transparent liquid, and observe for suspended particles, precipitates, or phase separation. A fundamental test for preliminary quality control. |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.412–1.416 |
| Relative Density (20°C/25°C) | 1.145–1.155 g/cm³ |
| Acid Value (mg KOH/g) | <=0.5 |
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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.