(+)-Dimethyl L-tartrate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 608-68-4 |
| Product name | (+)-Dimethyl L-tartrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 L-tartrate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (+)-Dimethyl L-tartrate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (+)-Dimethyl L-tartrate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Chiral synthetic intermediates | Used in asymmetric synthesis reactions |
| Food | Production of food additives | Applied in esterification reactions |
| Chemicals | Synthesis of chiral ligands | Employed in catalyst preparation |
| Pesticides | Pesticide intermediates | Applied in asymmetric catalytic hydrogenation |
Manufacturing Quality Control of (+)-Dimethyl L-tartrate
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase column (e.g., C18), with water-acetonitrile or water-methanol as the mobile phase, and UV detection at 254 nm. The main component content is quantified by comparing retention times and peak areas with those of a reference standard. Purity is typically required to be no less than 98.0%. |
| Content Determination | Gas Chromatography (GC) | Employs a capillary column (e.g., DB-5 or HP-5), with nitrogen or helium as carrier gas and a flame ionization detector (FID). Suitable for quantitative analysis of volatile ester compounds, allowing accurate determination of dimethyl tartrate content. |
| Optical Rotation | Polarimetry | Measures the rotation angle of plane-polarized light passing through chiral compounds to determine specific optical rotation. L-(+)-Dimethyl tartrate exhibits positive optical activity, with a standard specific rotation of approximately +11.5° to +12.5° (c=10, MeOH), used to confirm stereochemistry and optical purity. |
| Residual Solvents | Gas Chromatography (GC-FID/MS) | Utilizes headspace or solution injection with appropriately polar capillary columns to detect potential residual organic solvents (e.g., methanol, ethanol, acetone, dichloromethane), complying with ICH Q3A/B guideline limits. |
| Water Content | Karl Fischer Titration | Quantitatively determines moisture content via chemical reaction, suitable for moisture-sensitive ester compounds to ensure product dryness and stability; generally requires water content ≤ 0.5%. |
| Melting Point | Microscopic Melting Point Determination | Measured using a microscopic melting point apparatus or digital melting point instrument. The typical melting range is 67–70 °C, used to assess purity and crystalline state. |
| Impurity Profiling | Liquid Chromatography-Mass Spectrometry (LC-MS) | Used for identification of unknown impurities or structurally similar compounds; combines mass spectral fragmentation information for qualitative analysis, enabling assessment of by-products or degradation products from manufacturing processes. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Used to detect heavy metal impurities such as lead, cadmium, mercury, and arsenic, ensuring compliance with pharmacopoeial or industry standards (e.g., USP, EP, ChP) regarding metal element limits. |
Technical Specifications of (+)-Dimethyl L-tartrate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (GC-MS) |
| Optical Rotation | +20.0 to +22.0 deg (c=1, in methanol) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Melting Point | 47 to 49 °C |
| Heavy Metals | <=10 ppm |
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 L-tartrate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (+)-Dimethyl L-tartrate
Packaging of (+)-Dimethyl L-tartrate
Industrial (+)-Dimethyl L-tartrate 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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