D-Galactal Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 21193-75-9 |
| Product name | D-Galactal |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood Grade |
| Packaging | 25KG/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-Galactal
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk D-Galactal Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of D-Galactal
| Industry | Application | Process |
|---|---|---|
| Biochemical Research | Used as a glycosidase inhibitor to study carbohydrate metabolism mechanisms | Prepared via chemical synthesis for in vitro enzyme activity inhibition assays |
| Pharmaceutical Industry | Employed as an intermediate or precursor in the synthesis of bioactive carbohydrate derivatives | Structurally modified via organic synthesis to generate potential drug candidate molecules |
| Food Science | Serves as a model compound for studying non-enzymatic glycation (Maillard reaction) | Reacted with amino acids under controlled conditions (e.g., heating) to simulate food processing |
| Microbiology | Used as a substrate for metabolic studies of specific bacteria (e.g., lactic acid bacteria) | Added to culture media to investigate microbial utilization pathways for rare sugars |
Manufacturing Quality Control of D-Galactal
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 210 nm, based on peak area comparison against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC-UV; identification and quantification relative to the main peak using response factors or external standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents (e.g., methanol, acetone) based on calibrated external standards. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine-based reagent; water reacts stoichiometrically with iodine, sulfur dioxide, and base in methanol medium. |
| Heavy Metals | ICP-MS | Multi-element detection after acid digestion; quantifies trace metals (Pb, Cd, As, Hg, etc.) via mass spectrometry with isotopic resolution and internal standard correction. |
| Chloride Impurity | Ion Chromatography | Separation of anions on an ion-exchange column with suppressed conductivity detection; chloride quantified using external calibration curve. |
| Sulfate Impurity | Ion Chromatography | Same principle as chloride; sulfate eluted and detected by conductivity after suppression, quantified against sulfate standard. |
| Residue on Ignition | Gravimetric Analysis | Sample ignited at 700-800 C to oxidize organic matter; inorganic residue weighed after cooling in desiccator. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light at 20 C using sodium D-line (589 nm); correlates with enantiomeric purity and concentration. |
| pH (1% w/v solution) | Potentiometric pH Measurement | Electrochemical measurement using calibrated glass electrode in aqueous solution; reflects acidic/basic impurities and hydrolysis products. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity versus angle to determine volume-based particle size distribution in suspended sample. |
| Microbial Limits | Membrane Filtration | Filtration of sample solution followed by incubation on selective agar media; enumeration of aerobic bacteria, yeasts, and molds. |
Technical Specifications of D-Galactal
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC) |
| Optical Rotation | -22.5 to -20.5 deg (c=1, H2O) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 128 to 132 °C |
| Residue on Ignition | <=0.1% |
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-Galactal
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of D-Galactal
Packaging of D-Galactal
Industrial D-Galactal 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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