Dithioerythritol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6892-68-8 |
| Product name | Dithioerythritol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeCosmetic 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 Dithioerythritol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dithioerythritol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dithioerythritol
| Industry | Application | Process |
|---|---|---|
| Biobiochemical Research | Reducing agent for protein disulfide bonds; used to protect thiol groups | Laboratory reagent; added directly |
| Pharmaceutical Industry | Intermediate in drug synthesis, particularly for sulfur-containing compounds | Reduction step in chemical synthesis reactions |
| Cosmetics | Reducing agent in hair-care products for permanent waving or straightening | Formulated with other ingredients; applied at ambient temperature |
Manufacturing Quality Control of Dithioerythritol
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Identification Test | Infrared Spectroscopy (IR) | By measuring the infrared absorption spectrum of the sample and comparing it with the standard spectrum, the molecular structure characteristic peaks are confirmed to be consistent, used for identifying Dithioerythritol. |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Using a reverse-phase C18 column, with an appropriate mobile phase (such as methanol-water or acetonitrile-water system) for gradient or isocratic elution, and a UV detector (typically at 210–220 nm wavelength) for detection. Quantitative analysis is performed using external standard method or internal standard method to determine the content of the main component. |
| Related Substances (Impurity) Testing | High-Performance Liquid Chromatography (HPLC) | Similar to content determination, but the chromatographic conditions are optimized to achieve good separation between the main peak and potential degradation products or synthetic by-products. The total amount of impurities and individual impurity limits are controlled using area normalization method or the main component self-control method with correction factor. |
| Moisture | Karl Fischer Titration | Based on the principle that iodine reacts quantitatively with water in the presence of sulfur dioxide, pyridine, and imidazole. The moisture content is determined by coulometric or volumetric methods, suitable for heat-sensitive or easily oxidizable samples. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Atmospheric Drying Method | The sample is dried at a specified temperature (e.g., 60–80°C) and time, and the mass difference before and after drying is measured to calculate the percentage of volatile substances (including moisture and other volatile components) lost. |
| Residual Solvents | Gas Chromatography (GC) | Using headspace or direct injection, with capillary columns such as DB-624 or HP-INNOWAX for separation, and FID detector for detection. External standard method is used to determine residual organic solvents (such as methanol, ethanol, acetone, etc.) from the synthesis process. |
| Heavy Metals | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) or Atomic Absorption Spectroscopy (AAS) | After sample digestion, the content of heavy metal elements such as lead, arsenic, cadmium, and mercury is determined by ICP-MS or AAS to ensure compliance with pharmacopoeia or regulatory limits. |
| pH Value | pH Meter Measurement Method | A solution of Dithioerythritol (e.g., 1% w/v) is prepared and the pH is directly measured using a calibrated pH meter to evaluate its stability and applicability. |
Technical Specifications of Dithioerythritol
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 148–152°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic sulfurous odor |
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 Dithioerythritol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dithioerythritol
Packaging of Dithioerythritol
Industrial Dithioerythritol 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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