Erythorbic Acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 89-65-6 |
| Product name | Erythorbic Acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeFood GradeCosmetic 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 Erythorbic Acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Erythorbic Acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Erythorbic Acid
| Industry | Applications | Process |
|---|---|---|
| Food Industry | Antioxidant, color stabilizer, preservative synergist | Added to meat products, canned fruits and vegetables, and beverages to prevent oxidative discoloration and nutrient loss; commonly used in combination with sodium nitrite to inhibit Clostridium botulinum and maintain color stability |
| Pharmaceutical Industry | Pharmaceutical excipient, antioxidant stabilizer | Used in vitamin formulations, injectables, and oral solutions to enhance drug stability and prevent oxidative degradation of active ingredients |
| Cosmetics Industry | Antioxidant, skin-conditioning agent | Formulated into skincare and brightening products to mitigate free radical damage and assist in stabilizing active ingredients (e.g., vitamin C derivatives) |
| Feed Industry | Antioxidant additive | Incorporated into animal feed to prevent oxidation-induced deterioration of fats and fat-soluble vitamins, thereby extending shelf life |
| Chemical Industry | Reducing agent, organic synthesis intermediate | Employed as a mild reducing agent in fine chemical synthesis for selective reduction reactions |
Manufacturing Quality Control of Erythorbic Acid
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Using a C18 reversed-phase column, phosphate buffer-methanol or acetonitrile as the mobile phase, and UV detection at 245 nm wavelength. By comparing retention time and peak area with standard reference materials, the content of D-isosorbide is quantitatively determined. It offers high selectivity and sensitivity, suitable for complex matrix samples. |
| Content Determination | Iodometric Titration | Based on the reducing property of D-isosorbide, it reacts with iodine standard solution in an oxidation-reduction reaction. Starch is used as an indicator, and the endpoint is marked by the appearance of blue color. This method is simple and cost-effective but susceptible to interference from other reducing substances, suitable for samples with high purity. |
| Content Determination | 2,6-Dichlorophenol Titration | D-isosorbide reduces 2,6-dichlorophenol (blue) to its colorless form, and the content is calculated by titrating until the endpoint color change (pink). This is a classical pharmacopoeia method suitable for determining ascorbic acid-like substances in food and pharmaceuticals, but pH and temperature control are required. |
| Purity and Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Gradient or isocratic elution is used to detect possible impurities such as L-ascorbic acid, dehydroisoascorbic acid, and 5-keto-D-gluconic acid. The impurity limits are assessed by peak area normalization or external standard method, complying with ICH Q3B guidelines. |
| Moisture Content Determination | Karl Fischer Titration (Karl Fischer) | This method utilizes a quantitative reaction between iodine, sulfur dioxide, pyridine, and methanol in the presence of water, with endpoint determined by electrochemical or visual methods. It is suitable for precise determination of trace moisture in solids or powders, and is a pharmacopoeia standard method. |
| Ash Content Determination | High-Temperature Ashing (Dry Ashing) | The sample is incinerated at 550–600°C in a muffle furnace until constant weight, and the residual inorganic matter mass is measured. It is used to assess the content of inorganic impurities in the product, complying with the total ash requirements in the Chinese Pharmacopoeia or food standards. |
| Solution Clarity and Color | Visible Spectrophotometry / Visual Colorimetry | The sample is prepared into a solution of specified concentration, and the absorbance is measured in the visible light range (e.g., 420 nm), or compared visually with standard color solutions to evaluate solution clarity and color, ensuring no pigment or colloidal impurity contamination. |
| Heavy Metal Detection | Atomic Absorption Spectrometry (AAS) or ICP-MS | After sample digestion, heavy metal elements such as lead, arsenic, cadmium, and mercury are determined using AAS, or multi-element simultaneous detection is performed using inductively coupled plasma mass spectrometry (ICP-MS), complying with pharmacopoeia heavy metal limit requirements (e.g., ≤10 ppm). |
| Microbial Limit Test | Plate Count Method / MPN Method | According to the microbial limit test method in the Chinese Pharmacopoeia, the total number of aerobic bacteria, molds, yeasts, and Escherichia coli are tested to ensure that the product meets the microbial control standards for non-sterile raw materials. |
| Inorganic Ions: Chloride, Sulfate, etc. | Ion Chromatography (IC) or Colorimetric Method | Ion chromatography is used to separate and detect inorganic anions such as chloride and sulfate ions, or turbidimetric colorimetry is performed using silver nitrate precipitation (for chloride) or barium chloride precipitation (for sulfate) to control inorganic impurity residues. |
| Solvent Residue Analysis | Gas Chromatography (GC) | Residual organic solvents (e.g., ethanol, acetone, methanol) from the production process are analyzed by headspace GC, and compliance with residual solvent limits is evaluated according to ICH Q3C guidelines. |
Technical Specifications of Erythorbic Acid
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 164-168°C |
| Optical Rotation | -17.0° to -19.0° (c=1, in H2O) |
| Total Impurities | <=1.0% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water; slightly soluble in ethanol |
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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NMR Spectra of Erythorbic Acid
Packaging of Erythorbic Acid
Industrial Erythorbic Acid 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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