China Factory Direct
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| CAS number | 498-36-2 |
| Product name | DL-LEUCIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Fragrances & Flavors | Used as a fragrance ingredient to impart fruity and creamy aroma notes | Incorporated directly into cosmetic or food flavor formulations as a base component, typically after dilution |
| Organic Synthesis | Used as a chiral intermediate in asymmetric synthesis reactions | Subjected to esterification, amidation, or reduction reactions in the presence of a catalyst for the preparation of chiral pharmaceuticals or functional materials |
| Food Additives | Used as a food flavoring agent (FEMA No. 3785) to impart fruity flavor to foods | Added to beverages, confectionery, dairy products, and other foods within the limits specified in GB 2760-2024, at concentrations of 0.1–10 mg/kg |
| 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. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration measuring water via iodine-sulfur dioxide reaction in pyridine-methanol medium. |
| Acidity (as H2SO4) | Acid-Base Titration | Neutralization of acidic impurities with standardized NaOH solution using phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Measurement of yellowness intensity by comparing sample color to APHA platinum-cobalt standard solutions. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic residue after controlled high-temperature ashing and weighing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals by atomization and absorption measurement at characteristic wavelengths. |
| Chloride Content | Potentiometric Titration with AgNO3 | Precipitation titration using silver nitrate and silver electrode detection of endpoint. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light induced by chiral molecules in solution. |
| Refractive Index | Refractometry | Determination of ratio of light velocity in air vs. sample at specified temperature and wavelength. |
| Density | Pycnometry or Digital Density Meter | Mass-to-volume ratio measurement using calibrated glass pycnometer or oscillating U-tube principle. |
| Volatile Impurities | Headspace Gas Chromatography (HS-GC) | Separation and quantification of low-boiling contaminants after thermal equilibration in sealed vial. |
| Residual Solvents | Gas Chromatography-Mass Spectrometry (GC-MS) | Identification and quantification of organic solvents based on retention time and mass spectral fragmentation. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 78–82°C |
| Acid Value (mg KOH/g) | 195–205 mg KOH/g |
| Optical Rotation | -12.0 to -16.0° (c=1, in methanol) |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.