L(+)-Diethyl L-tartrate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 87-91-2 |
| Product name | L(+)-Diethyl L-tartrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeFood GradeCosmetic 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 L(+)-Diethyl L-tartrate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk L(+)-Diethyl L-tartrate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of L(+)-Diethyl L-tartrate
| Industry | Application | Process |
|---|---|---|
| Fragrance Industry | Used as a synthetic raw material for fragrances | Produced via esterification of L-(+)-tartaric acid with ethanol to yield diethyl L-(+)-tartrate, serving as a base component in flavor and fragrance formulations |
| Pharmaceutical Industry | Employed as a chiral inducer in drug synthesis | Leveraged for its chiral properties to control enantiomeric purity during asymmetric synthesis |
| Personal Care Industry | Used as a stabilizer or solubilizer in cosmetic formulations | Incorporated into emulsions, creams, and similar products to enhance solubility and stability of other formulation components |
| Fine Chemicals Industry | Served as an organic synthesis intermediate | Converted into more complex organic compounds through a sequence of chemical reactions |
| Food Industry | Used as a food additive | Permitted as a flavor enhancer in specific food products following rigorous safety evaluation |
Manufacturing Quality Control of L(+)-Diethyl L-tartrate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component by retention time and peak area comparison against certified reference standard. |
| Specific Optical Rotation | [alpha]D measurement using polarimeter | Measures rotation of plane-polarized light at 20 C and 589 nm to confirm chiral integrity and enantiomeric purity. |
| Water Content | Karl Fischer Titration (coulometric or volumetric) | Electrochemical titration quantifying water via iodine-sulfur dioxide reaction in anhydrous methanol/pyridine medium. |
| Acidity (as Tartaric Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis after high-temperature ashing | Measures non-volatile inorganic residue remaining after combustion at 700-800 C. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after wet digestion | Quantifies total heavy metals by atomization and absorption measurement at characteristic wavelength following acid digestion. |
| Chloride Impurity | Ion Chromatography (IC) or Potentiometric Titration | Separates and quantifies chloride ions via conductivity detection (IC) or silver nitrate titration with endpoint detection. |
| Related Substances (Impurities) | Gas Chromatography (GC) with FID or Mass Spectrometry (GC-MS) | Detects and quantifies structurally related organic impurities based on relative retention times and response factors. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement at 455 nm | Evaluates yellowness intensity by matching sample color to platinum-cobalt standard scale or absorbance at specified wavelength. |
| Density at 20 C | Oscillating U-tube Densitometry | Determines mass per unit volume by measuring resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Refractive Index at 20 C | Abbe Refractometry | Measures ratio of light velocity in air vs. sample using critical angle principle with sodium D-line illumination. |
| Boiling Point (at 760 mmHg) | Capillary Boiling Point Apparatus | Determines temperature at which vapor pressure equals atmospheric pressure using calibrated capillary method under controlled heating. |
Technical Specifications of L(+)-Diethyl L-tartrate
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=99.0% (GC-MS) |
| Optical Rotation | +8.0 to +9.0 deg (c=10, in CHCl3) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.422 to 1.426 |
| Relative Density (20°C/25°C) | 1.070 to 1.080 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 L(+)-Diethyl L-tartrate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of L(+)-Diethyl L-tartrate
Packaging of L(+)-Diethyl L-tartrate
Industrial L(+)-Diethyl 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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