2,7-Dihydroxynaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 582-17-2 |
| Product name | 2,7-Dihydroxynaphthalene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeElectronic GradeMaterial 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 2,7-Dihydroxynaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,7-Dihydroxynaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,7-Dihydroxynaphthalene
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthesis of dye intermediates | Sulfonation catalyzed by sulfuric acid, followed by diazotization and coupling reactions |
| Pharmaceutical Industry | Synthesis of precursors for certain pharmaceuticals | Preparation of target compounds via condensation or substitution reactions with various organic compounds |
| Pesticide Manufacturing | Production of specific pesticide types | Used as a starting material in a series of chemical transformations, including but not limited to esterification and amidation |
| Fine Fragrances & Flavors | Preparation of specialty aroma chemicals | Employed as a fragrance ingredient after appropriate chemical modification (e.g., etherification) |
| Optical Materials | Manufacture of optically active compounds | Chiral induction synthesis of high-optical-purity derivatives from 2,7-dihydroxynaphthalene |
Manufacturing Quality Control of 2,7-Dihydroxynaphthalene
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column, with methanol/water or acetonitrile/water as the mobile phase. A UV detector (e.g., 254 nm or 280 nm) is used to quantify the purity of the main component and separate impurities. |
| Content Determination | UV-Visible Spectrophotometry (UV-Vis) | Utilizes the maximum absorption of 2,7-dihydroxynaphthalene at a specific wavelength (e.g., 330–350 nm). The sample content is calculated using a standard curve method; simple and fast operation. |
| Structural Confirmation | Fourier Transform Infrared Spectroscopy (FT-IR) | Confirms molecular structure by comparing characteristic functional group absorption peaks (e.g., phenolic OH stretch ~3200 cm⁻¹, aromatic ring C=C ~1600 cm⁻¹) with reference spectra. |
| Molecular Weight and Structure Verification | Mass Spectrometry (MS) | Uses electrospray ionization (ESI) or electron impact (EI) sources to obtain molecular ion peaks [M+H]⁺ or [M]⁺, and fragment ion information to assist in structural identification. |
| Impurity Qualitative and Quantitative Analysis | Liquid Chromatography-Mass Spectrometry (LC-MS) | After HPLC separation, the sample is introduced into a mass spectrometer. This allows simultaneous separation, molecular weight determination, and structural inference of impurities, suitable for unknown impurity screening and quantification. |
| Moisture Determination | Karl Fischer Titration | Measures trace moisture in samples using volumetric or coulometric methods, ensuring the product's dryness meets quality requirements. |
| Residual Solvent Testing | Gas Chromatography (GC) | Uses headspace or direct injection, with capillary column separation. Residual organic solvents (e.g., methanol, ethyl acetate) are quantified using FID or MS detectors. |
| Melting Point Determination | Capillary Melting Point Apparatus | Determines the temperature range from initial melting to complete melting of the sample during heating, used to assess purity and crystal form consistency. |
Technical Specifications of 2,7-Dihydroxynaphthalene
| Test Item | Specification |
|---|---|
| Appearance | Pale-gray solid |
| Purity | >=98.5% (LC-MS) |
| Melting Point | 172–176°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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 2,7-Dihydroxynaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,7-Dihydroxynaphthalene
Packaging of 2,7-Dihydroxynaphthalene
Industrial 2,7-Dihydroxynaphthalene 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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