2-Naphthol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 135-19-3 |
| Product name | 2-Naphthol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeMaterial GradeElectronic 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-Naphthol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Naphthol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Naphthol
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthesis of dye intermediates, such as acid dyes and azo dyes | 2-Naphthol is produced via sulfonation of naphthalene followed by alkali fusion, then used in coupling reactions to synthesize dyes |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates, such as antimalarials and antibiotics | Serves as a building block for pharmaceutical scaffolds, participating in condensation or substitution reactions |
| Pesticide Industry | Preparation of insecticidal and fungicidal intermediates | Reacts with organochlorine compounds to generate biologically active pesticide precursors |
| Rubber Additives | Production of antioxidants (e.g., antioxidant D) | Condenses with aldehydes or ketones to yield stable rubber protective agents |
| Fragrance Industry | Synthesis of fragrance ingredients, such as musk-type compounds | Undergoes esterification or reduction to produce odor-active fragrance substances |
| Photographic Materials | Used in manufacturing photographic films and light-sensitive papers as a developing agent | Functions as a component of developing agents, participating in redox development processes |
| Organic Synthesis | General-purpose organic synthesis intermediate | Employed in electrophilic substitution, coupling, esterification, and other reactions to construct complex molecular frameworks |
Manufacturing Quality Control of 2-Naphthol
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Assay | High-Performance Liquid Chromatography (HPLC) | Utilizes a C18 reversed-phase chromatographic column with a mobile phase of methanol-water or acetonitrile-water for elution. Detection is performed using a UV detector at wavelengths of 275–285 nm. Quantification of 2-naphthol is achieved via external standard or internal standard methods, offering high sensitivity, high resolution, and excellent reproducibility. |
| Purity Analysis | Gas Chromatography (GC) | Applicable to samples with good volatility. After appropriate dissolution, the sample is injected into a gas chromatograph equipped with a capillary column for separation and detected using a flame ionization detector (FID). Effectively detects organic impurities and residual solvents, suitable for analysis of high-purity samples. |
| Impurity Detection | Thin-Layer Chromatography (TLC) | The sample is spotted onto a silica gel plate and developed using a mixed solvent system such as petroleum ether-ethyl acetate. After visualization, the position and number of main and impurity spots are observed. Used for rapid screening of organic impurities; simple to perform but with lower sensitivity. |
| Water Content | Karl Fischer Titration | Based on the quantitative reaction of iodine and sulfur dioxide in methanol with water. Water content is determined via potentiometric or coulometric titration, suitable for trace moisture analysis with accurate and reliable results. |
| Melting Point | Melting Point Determination | The melting temperature of 2-naphthol (theoretical melting point: approximately 121–123°C) is measured using a melting point apparatus or capillary method. The melting range is used to assess purity; impurities typically cause a depressed melting point and broadened melting range. |
| Appearance and Color | Visual Color Comparison | The sample is compared visually against standard color solutions to evaluate its shade, used to assess oxidation level or impurity content. Commonly employed for preliminary quality assessment of active pharmaceutical ingredients or industrial products. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After digestion with nitric acid and hydrogen peroxide, concentrations of heavy metal elements such as lead, cadmium, mercury, and arsenic are measured. Compliance with pharmacopeial or environmental standards is ensured, with high sensitivity suitable for trace metal detection. |
| Residual Solvents | Gas Chromatography (GC) | According to ICH or pharmacopeial guidelines, residual organic solvents (e.g., methanol, benzene, toluene) potentially retained during production are detected using headspace sampling-GC/FID to ensure compliance with safety limits. |
Technical Specifications of 2-Naphthol
| Test Item | Specification |
|---|---|
| Appearance | White to light pink crystalline powder |
| Purity | >=98.5% |
| Melting Point | 120-123°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| 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-Naphthol
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| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Naphthol
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Industrial 2-Naphthol 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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