D-(-)-PANTOLACTONE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 599-04-2 |
| Product name | D-(-)-PANTOLACTONE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeCosmetic 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 D-(-)-PANTOLACTONE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-(-)-PANTOLACTONE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of D-(-)-PANTOLACTONE
| Industry | Application | Process |
|---|---|---|
| Food Industry | Ingredient for food flavorings | Used as a flavor enhancer in formulating tropical fruit and dairy-type food flavorings; added in trace amounts to food products to improve taste profile |
| Personal Care Industry | Fragrance for perfumes and cosmetics | Applied in formulating premium perfumes, skincare, and haircare products to deliver natural fruity or creamy notes |
| Chemical Synthesis | Organic synthesis intermediate | Serves as a precursor in synthesizing other fragrance compounds or functional molecules; participates in condensation, esterification, and other reactions to construct target molecular structures |
Manufacturing Quality Control of D-(-)-PANTOLACTONE
| Test Item | Common Testing Method | Method Description |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, state, and presence of visible impurities in the sample under natural light or a standard light source. |
| Purity/Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with water-methanol or water-acetonitrile as the mobile phase for gradient or isocratic elution. Quantify the main component content using an ultraviolet detector (typically at 210–280 nm) and external standard or internal standard methods. |
| Structure Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | Confirm the compound structure using ¹H-NMR and ¹³C-NMR by comparing characteristic peak chemical shifts, coupling constants, and consistency with reference spectra. |
| Structure Confirmation | Mass Spectrometry (MS) | Determine molecular ion peaks ([M+H]+ or M⁺), verify molecular weight, and fragment ions using electrospray ionization (ESI) or electron impact ionization (EI) mass spectrometry. |
| Moisture Content | Karl Fischer Method | Determine moisture content in the sample using electrochemical titration, suitable for trace moisture detection. It includes volumetric and coulometric methods. |
| Residual Solvents | Gas Chromatography (GC) | According to ICH guidelines, use capillary columns to detect organic solvents possibly remaining during production (e.g., methanol, ethanol, acetone), analyzed with an FID detector. |
| Melting Point | Melting Point Apparatus Method | Determine the initial and final melting temperatures of the sample using automatic or semi-automatic melting point apparatus to assess its purity and consistency. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Digest the sample and measure the content of heavy metals such as lead, arsenic, cadmium, and mercury, complying with pharmacopoeia or food safety limit requirements. |
| Related Substances (Impurities) | HPLC Method (Gradient Elution) | Separate the main peak and impurity peaks by optimizing chromatographic conditions, detect and quantify each related substance, and calculate total impurity amount and individual impurity limits. |
| Ignition Residue | Sulfate Ash Method | After high-temperature ignition of the sample, add sulfuric acid and weigh the residue to evaluate inorganic impurity content. |
Technical Specifications of D-(-)-PANTOLACTONE
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 78.0 to 82.0 °C |
| Optical Rotation | -52.0 to -49.5 ° (c=1, in methanol) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| 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 D-(-)-PANTOLACTONE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-(-)-PANTOLACTONE
Packaging of D-(-)-PANTOLACTONE
Industrial D-(-)-PANTOLACTONE 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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