D-(+)-MALIC ACID DIMETHYL ESTER Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 70681-41-3 |
| Product name | D-(+)-MALIC ACID DIMETHYL ESTER |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeFood Grade |
| Packaging | 25L/drum |
| 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 DIMETHYL ESTER
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-(+)-MALIC ACID DIMETHYL 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 DIMETHYL ESTER
| Industry | Application | Process |
|---|---|---|
| Chemicals | Synthesis of intermediates | Esterification |
| Pharmaceuticals | Drug synthesis | Carbonylation or esterification |
| Food | Flavor additives | Chemical modification and purification |
| Materials Science | Polymer monomers | Ring-opening polymerization or other polymerization processes |
| Agriculture | Pesticide intermediates | Oxidation, esterification, or condensation reactions |
Manufacturing Quality Control of D-(+)-MALIC ACID DIMETHYL ESTER
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies D-malic acid dimethyl ester by retention time and peak area against a certified reference standard. |
| Water Content | Karl Fischer Titration | Measures water via coulometric or volumetric titration based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Acid Value | Acid-Base Titration with NaOH | Determines free carboxylic acid impurities by titration with standardized sodium hydroxide using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after controlled high-temperature ashing and weighing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomization and absorption measurement at characteristic wavelengths after acid digestion. |
| Chloride Content | Ion Chromatography (IC) | Separates and quantifies chloride ions using anion-exchange column and conductivity detection. |
| Specific Optical Rotation | Polarimetry | Measures the angle of rotation of plane-polarized light induced by chiral D-malic acid dimethyl ester in solution. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Evaluates yellowness intensity by matching sample color to APHA platinum-cobalt standard solutions or measuring absorbance at 430 nm. |
| Density | Digital Density Meter | Determines mass per unit volume at specified temperature using oscillating U-tube principle. |
| Refractive Index | Refractometry | Measures bending of light through liquid sample at specified temperature to assess purity and concentration. |
| Residual Solvents (e.g., methanol, dichloromethane) | Headspace Gas Chromatography (HS-GC) | Quantifies volatile organic solvents by equilibrium partitioning into headspace followed by GC-FID analysis. |
| Related Substances | High Performance Liquid Chromatography (HPLC) with UV detection | Separates and quantifies structurally related impurities (e.g., monoester, malic acid, diastereomers) using reverse-phase chromatography and UV absorbance. |
Technical Specifications of D-(+)-MALIC ACID DIMETHYL 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 | +5.0 to +8.0 deg (c=1, in methanol) |
| Refractive Index (n20/D) | 1.420 to 1.430 |
| Relative Density (20°C/25°C) | 1.110 to 1.130 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 DIMETHYL ESTER
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-(+)-MALIC ACID DIMETHYL ESTER
Safety Information of D-(+)-MALIC ACID DIMETHYL ESTER
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of D-(+)-MALIC ACID DIMETHYL ESTER
Industrial D-(+)-MALIC ACID DIMETHYL 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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