1-Naphthol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 90-15-3 |
| Product name | 1-Naphthol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeMaterial GradeReagent 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 1-Naphthol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1-Naphthol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1-Naphthol
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for synthesizing naphthalene-based azo dyes (e.g., Sudan series, Oil Red O), acid dyes, and direct dyes | Diazotization-coupling reaction; coupling with diazonium salts to form azo dyes |
| Pesticide Industry | Intermediate for synthesizing insecticides (e.g., carbaryl), fungicides, and plant growth regulators | Reaction with chloroformates or isocyanates to produce carbamate pesticides; condensation with formaldehyde to prepare naphthol-formaldehyde resin auxiliaries |
| Rubber Industry | Production of rubber antioxidants (e.g., antioxidant DNP, SP) and accelerators | Condensation with aldehydes (e.g., formaldehyde, benzaldehyde), followed by oxidation or sulfonation modifications |
| Pharmaceutical Industry | Intermediate for synthesizing antipyretic analgesics (e.g., metabolites of metamizole), anticoagulants, and local anesthetics | Multi-step synthesis—including nitration, reduction, diazotization, and hydrolysis—to construct the target molecular framework |
| Fragrance Industry | Used in synthesizing synthetic sandalwood compounds (e.g., trimethylnaphthol) and stabilizers for household fragrance formulations | Condensation or alkylation reactions with aldehydes or ketones to build macrocyclic or polycyclic fragrance structures |
| Surfactants | Synthesis of alkyl naphthalene sulfonate dispersants and wetting agents | Alkylation (e.g., with olefins or alkyl halides) followed by sulfonation to introduce hydrophilic groups |
| Analytical Chemistry | pH indicator (color transition range: pH 0.0–2.0, red → yellow) and colorimetric reagent for metal ions (e.g., Fe³⁺, Cu²⁺ complexation) | Used directly as aqueous or ethanol solutions; forms colored complexes with metal ions |
Manufacturing Quality Control of 1-Naphthol
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with a UV detector (typically at 275–285 nm), employing methanol-water or acetonitrile-water as mobile phase for gradient or isocratic elution to quantitatively analyze 1-naphthol content, offering high sensitivity and resolution. |
| Purity Analysis | Gas Chromatography (GC) | Suitable for samples with good volatility; separation is achieved via a capillary column with FID detection, effectively evaluating organic impurities in 1-naphthol. Note potential thermal decomposition at high temperatures. |
| Structural Confirmation | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Utilizes characteristic absorption peaks of 1-naphthol at 275 nm, 330 nm, etc., for qualitative analysis and preliminary quantification. Simple to operate but with lower specificity. |
| Impurity Detection | Thin-Layer Chromatography (TLC) | Uses silica gel plates with appropriate eluents (e.g., ethyl acetate:petroleum ether) for development; spots are visualized to observe main and impurity bands, enabling rapid screening of organic impurities at low cost and with simple operation. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Detects residual organic solvents (e.g., methanol, benzene derivatives) potentially present during production via headspace sampling and GC-FID detection, in compliance with pharmacopeial requirements for residual solvent control. |
| Water Content | Karl Fischer Titration | Utilizes either coulometric or volumetric methods to precisely determine water content in the sample, suitable for quality control of active pharmaceutical ingredients. |
| Melting Point Determination | Melting Point Apparatus | Measures the melting temperature of 1-naphthol (literature value: approximately 94–96°C) using automatic or manual melting point apparatus to preliminarily assess purity and substance consistency. |
| Heavy Metal Detection | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, measures heavy metal residues such as lead, arsenic, and cadmium to ensure compliance with safety standards for pharmaceuticals or chemical substances. |
Technical Specifications of 1-Naphthol
| Test Item | Specification |
|---|---|
| Appearance | Off-white to grey solid |
| Purity | ≥99.5% |
| 1-Naphthylamine | ≤0.1% |
| 2-Naphthol | ≤0.1% |
| Freezing point | ≥94.5°C |
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 1-Naphthol
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NMR Spectra of 1-Naphthol
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Industrial 1-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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