2,6-Dihydroxybenzoic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 303-07-1 |
| Product name | 2,6-Dihydroxybenzoic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial 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 2,6-Dihydroxybenzoic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,6-Dihydroxybenzoic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,6-Dihydroxybenzoic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antibiotic intermediates, such as cephalosporins | Preparation of active pharmaceutical ingredients via multi-step reactions including esterification, reduction, and cyclization |
| Fine Fragrances & Cosmetics | Used as fragrance additives or antioxidants to enhance product stability | Production of aromatic derivatives via esterification |
| Pesticides | Synthesis of intermediates for certain herbicides and fungicides | Construction of target molecular structures via organic synthesis processes including substitution and condensation |
| Dyes | Dye intermediate for producing azo dyes and acid dyes | Preparation of dye compounds via diazotization-coupling reactions |
| Organic Synthesis | Multifunctional organic synthesis intermediate for building complex molecular frameworks | Functionalization via acylation, esterification, and condensation leveraging hydroxyl and carboxyl group reactivity |
Manufacturing Quality Control of 2,6-Dihydroxybenzoic acid
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Identification Test | Infrared Spectroscopy (IR) | Determine the infrared absorption spectrum of the sample and compare it with the standard spectrum to confirm characteristic functional groups (e.g., phenolic hydroxyl, carboxyl) and molecular structure of 2,6-dihydroxybenzoic acid. |
| High-Performance Liquid Chromatography (HPLC) Retention Time Comparison | Compare the retention times of the sample and reference substance under identical chromatographic conditions to perform preliminary identification. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with mobile phases such as methanol-water or acetonitrile-water (often containing a small amount of acid to adjust pH), detect using UV detector (typically at 254 nm or 280 nm wavelength), and quantify the main component by external standard method or internal standard method. |
| Acid-Base Titration Method | Utilize the acidic nature of the carboxyl group in 2,6-dihydroxybenzoic acid; titrate with standardized sodium hydroxide solution, using phenolphthalein or potentiometric endpoint detection, and calculate total acid content (suitable for rough quantification of high-purity samples). | |
| Related Substances (Impurity Testing) | High-Performance Liquid Chromatography (HPLC) | Employ gradient or isocratic elution programs to separate and detect potential impurities such as synthetic intermediates, by-products, or degradation products (e.g., unreacted starting materials, isomers). Impurity levels are typically controlled using area normalization method or the main component self-control method with correction factors. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Constant Temperature Drying Method | Dry the sample at a specified temperature (e.g., 105°C) until constant weight is achieved, then measure mass loss to assess moisture and volatile substances content. |
| Residue on Ignition | High-Temperature Ashing Method | Char the sample, then ignite at 700–800°C, weigh the residual inorganic matter to control total inorganic impurities. |
| Heavy Metals | Thioacetamide Method (Colorimetry) or Atomic Absorption Spectroscopy (AAS) | Detect residual heavy metals such as lead, cadmium, mercury, and arsenic via colorimetric reaction or AAS, ensuring compliance with pharmacopoeial or industry-specific limits. |
| pH Value | pH Meter Measurement Method | Prepare an aqueous solution at a defined concentration (e.g., 1%), then measure its pH using a calibrated pH meter to reflect free acid or impurity effects. |
Technical Specifications of 2,6-Dihydroxybenzoic acid
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.0% (HPLC) |
| Melting Point | 205–209 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| 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 2,6-Dihydroxybenzoic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,6-Dihydroxybenzoic acid
Packaging of 2,6-Dihydroxybenzoic acid
Industrial 2,6-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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