2,3-Dihydroxybenzoic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 303-38-8 |
| Product name | 2,3-Dihydroxybenzoic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 2,3-Dihydroxybenzoic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-Dihydroxybenzoic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-Dihydroxybenzoic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Used in esterification, condensation, and cyclization reactions |
| Fine Chemicals Manufacturing | Production of fragrance and dye intermediates | Applied in oxidation, reduction, and substitution reactions |
Manufacturing Quality Control of 2,3-Dihydroxybenzoic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 280 nm, comparing peak area to a certified reference standard. |
| Appearance | Visual Inspection | Assessment of crystalline form and absence of visible foreign particles or discoloration against a white background under controlled lighting. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, compared to reference value (195-199 C). |
| Loss on Drying | Gravimetric (105 C, 2 h) | Measurement of mass loss after drying under specified temperature and time to determine volatile content including moisture. |
| Residue on Ignition | Gravimetric (Ashing at 600 C) | Weighing residue remaining after high-temperature incineration to quantify inorganic impurities. |
| Heavy Metals (as Pb) | Colorimetric (Thiourea/Sulfide Method) | Reaction with sulfide reagent under acidic conditions to form colored complexes, compared visually to lead standard solutions. |
| Chloride | Argentometric Titration (Mohr Method) | Titration with silver nitrate using potassium chromate indicator; endpoint signaled by formation of brick-red Ag2CrO4 precipitate. |
| Sulfate | Barium Sulfate Gravimetric Method | Precipitation as BaSO4 in acidic medium followed by filtration, drying, and weighing of the insoluble residue. |
| Related Substances | HPLC-DAD | Separation and detection of structurally similar impurities using gradient HPLC with diode-array detection and peak area comparison. |
| Water Content | Karl Fischer Titration | Volumetric titration with iodine-based reagent where water reacts stoichiometrically, detected electrometrically at endpoint. |
| pH of Solution (1% w/v) | Potentiometric (pH Meter) | Measurement of hydrogen ion activity in aqueous suspension using calibrated pH electrode and buffer standards. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light through a solution in a defined cell pathlength and concentration. |
Technical Specifications of 2,3-Dihydroxybenzoic acid
| Test Item | Specification |
|---|---|
| Appearance | White to light brown crystalline powder |
| Purity | >=98.0% (HPLC) |
| Melting Point | 195–200 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| 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 2,3-Dihydroxybenzoic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-Dihydroxybenzoic acid
Packaging of 2,3-Dihydroxybenzoic acid
Industrial 2,3-Dihydroxybenzoic 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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