D-(+)-MALIC ACID DIETHYL ESTER Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7554-28-1 |
| Product name | D-(+)-MALIC ACID DIETHYL ESTER |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeReagent 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) |
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Documents We Provide for D-(+)-MALIC ACID DIETHYL ESTER
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-(+)-MALIC ACID DIETHYL ESTER Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of D-(+)-MALIC ACID DIETHYL ESTER
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food Additive | Used as a flavoring agent or flavor enhancer |
| Pharmaceutical Industry | Intermediate | Applied in the synthesis of pharmaceutical intermediates |
| Cosmetics Industry | Fragrance Ingredient | Applied in fragrance formulations to impart fruity notes |
| Research Institutions | Laboratory Reagent | Used as a raw material or solvent in organic synthesis experiments |
| Agriculture | Plant Growth Regulator | Serves as a synthetic precursor for plant growth regulators |
Manufacturing Quality Control of D-(+)-MALIC ACID DIETHYL ESTER
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| Specific Optical Rotation | [alpha]D measurement using polarimeter | Measures the angle of rotation of plane-polarized light at 20 C and 589 nm, indicating enantiomeric purity and identity. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Acid Value | Acid-Base Titration with NaOH | Neutralization of free carboxylic acid groups using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Ester Content | Hydrolysis followed by GC or Titration | Alkaline saponification converts ester to alcohol and carboxylate; liberated alcohol quantified by GC or acid back-titration. |
| Residue on Ignition | Gravimetric analysis after ashing | Sample ignited at 700-800 C; residue weighed to determine inorganic impurities content. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using lead as the toxicological marker and air-acetylene flame AAS. |
| Chloride Impurity | Ion Chromatography (IC) or Potentiometric Titration | Separation and quantification of chloride anions via suppressed conductivity detection (IC) or argentometric titration with AgNO3. |
| Color (APHA) | Visual comparison or Spectrophotometric measurement at 430 nm | Comparison of sample solution color intensity against platinum-cobalt standard solutions or absorbance measurement at 430 nm. |
| Refractive Index | Refractometry at 20 C | Measurement of light bending angle through liquid sample using calibrated Abbe refractometer; correlates with purity and concentration. |
| Volatile Impurities | Headspace Gas Chromatography (HS-GC) | Thermal equilibration of sample in sealed vial followed by GC-FID analysis of vapor phase for low-boiling contaminants. |
| Related Substances | High Performance Liquid Chromatography (HPLC) with UV detection | Separation on reversed-phase C18 column with gradient elution; detection at 210 nm to identify and quantify structural analogs and degradation products. |
Technical Specifications of D-(+)-MALIC ACID DIETHYL ESTER
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Optical Rotation | +25.0 to +27.0 deg (c=1, in ethanol) |
| Refractive Index (n20/D) | 1.426 to 1.430 |
| Relative Density (20°C/25°C) | 1.055 to 1.065 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 D-(+)-MALIC ACID DIETHYL ESTER
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-(+)-MALIC ACID DIETHYL ESTER
Safety Information of D-(+)-MALIC ACID DIETHYL ESTER
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of D-(+)-MALIC ACID DIETHYL ESTER
Industrial D-(+)-MALIC ACID DIETHYL ESTER 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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