Diethyl ethylmalonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 133-13-1 |
| Product name | Diethyl ethylmalonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Diethyl ethylmalonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Diethyl ethylmalonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Diethyl ethylmalonate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate in the synthesis of barbiturates (e.g., phenobarbital) | Condensation and cyclization to form barbituric acid derivatives |
| Pharmaceuticals | Synthesis of antibiotics (e.g., vitamin B6, chloramphenicol) | Serves as a C3 synthon for carbon skeleton construction via alkylation or acylation |
| Agrochemicals | Synthesis of plant growth regulators | Chemical modification to produce specific plant hormone analogues |
| Organic Synthesis | Preparation of 1,3-dicarbonyl compounds and derivatives | Alkylation utilizing the active methylene group |
| Dye Industry | Synthesis of certain dye intermediates | Serves as a building block for heterocycles or specific chromophores |
Manufacturing Quality Control of Diethyl ethylmalonate
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Place an appropriate amount of sample into a clean, transparent container and observe under natural light or standard illumination for color, clarity, and presence of suspended particles or precipitate; it should be a colorless to slightly yellow clear liquid. |
| Identification | Infrared Spectroscopy (IR) | Determine the infrared absorption spectrum of the sample using an infrared spectrometer and compare it with the reference spectrum; major characteristic peaks (e.g., C=O stretching vibration at approximately 1730 cm⁻¹, C–O stretching vibration at 1150–1300 cm⁻¹) should match. |
| Assay | Gas Chromatography (GC) | Use a capillary gas chromatography column with a flame ionization detector (FID), employing n-decane or other internal standards, or the area normalization method, to determine the content of the main component, ethyl malonate diethyl ester; typically required to be ≥98.0%. |
| Water Content | Karl Fischer Titration | Utilize Karl Fischer reagent to quantitatively react with water in the sample, and determine water content via coulometric or volumetric methods; generally controlled to ≤0.5%. |
| Acid Value | Acid-Base Titration | Dissolve the sample in neutral ethanol, use phenolphthalein as an indicator, and titrate with standardized sodium hydroxide solution to determine free acid content; calculate acid value (mg KOH/g), typically required to be ≤0.5. |
| Boiling Range/Boiling Point | Distillation Method | According to the Chinese Pharmacopoeia or relevant standards, use a micro-distillation apparatus to measure the initial and final boiling points; verify that the boiling range conforms to specifications (e.g., 198–202 °C). |
| Related Substances (Impurities) | Gas Chromatography (GC) | Under the same or optimized conditions as the assay method, detect and quantify possible impurities (e.g., unreacted starting materials, by-products); individual impurities typically ≤0.5%, total impurities ≤1.0%. |
| Refractive Index | Refractometry | Measure the refractive index of the sample at a specified temperature (e.g., 20 °C) using an Abbe refractometer; it should fall within the standard range (e.g., n²⁰_D ≈ 1.420–1.425). |
| Density | Densitometry or Pycnometer Method | Measure the density of the sample at 20 °C; typically approximately 1.02–1.04 g/cm³, used to assist in assessing purity and consistency. |
Technical Specifications of Diethyl ethylmalonate
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.415–1.425 |
| Relative Density (20°C/25°C) | 0.995–1.015 g/cm³ |
| Odor | Characteristic ester-like odor |
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 Diethyl ethylmalonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Diethyl ethylmalonate
Packaging of Diethyl ethylmalonate
Industrial Diethyl ethylmalonate 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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