
Alpha-naphthol
CAS: 90-15-3
Origin: China
We are a professional manufacturer specializing in high-quality Alpha-naphthol. Alpha-naphthol is widely used in chemical industry in China.
Product Introduction
Alpha-Naphthol (1-Naphthol) – High Purity Industrial Intermediate
1. Product Introduction
Alpha-Naphthol, also known as 1-Naphthol (CAS 90-15-3), is a high-purity aromatic organic compound with stable chemical activity and excellent coupling performance. It appears as white or pale yellow crystalline flake or powder with a slight phenolic odor. As a fundamental fine chemical intermediate, alpha-naphthol features high reaction activity, good solubility in organic solvents and stable molecular structure, making it widely used in dye synthesis, pharmaceutical manufacturing, rubber additives and industrial organic synthesis industries.
We are a professional manufacturer specializing in high-quality naphthalene series chemical intermediates. Our factory covers 100 mu, equipped with 150 skilled production workers and 30 professional technical researchers. We maintain long-term cooperation with multiple universities and scientific research institutes, continuously optimizing the green production technology of alpha-naphthol and other fine chemicals. We focus on product purity improvement, energy-saving process upgrading, and standardized wastewater and solid waste treatment, ensuring stable batch quality, low impurity content and environmentally compliant production for global clients.
2. Product Specifications
| Item | Standard Specification |
|---|---|
| Chemical Name | Alpha-Naphthol / 1-Naphthol |
| CAS Number | 90-15-3 |
| EINECS Number | 201-969-4 |
| Molecular Formula | C₁₀H₈O |
| Molecular Weight | 144.17 |
| Appearance | White to pale yellow crystalline flakes or powder |
| Purity | ≥ 99.0% |
| Melting Point | 94°C – 96°C |
| Moisture Content | ≤ 0.10% |
| Ash Content | ≤ 0.05% |
| Solubility | Soluble in alcohol, ether, benzene and alkaline solution; slightly soluble in water |
| Compliance | REACH Registered, ISO Certified, Industrial Grade Standard |
3. Main Applications
Alpha-Naphthol is a versatile fine chemical intermediate widely applied in multiple industrial fields:
- Dye & Pigment Industry: Serves as a critical intermediate for manufacturing azo dyes, acid dyes, reactive dyes and organic color pigments, providing stable color coupling performance and high color fastness.
- Pharmaceutical Intermediates: Used in the synthesis of multiple pharmaceutical products, antiseptic materials and medical chemical additives.
- Rubber & Plastic Additives: Applied in producing rubber antioxidants and aging-resistant agents to improve the durability and oxidation resistance of rubber products.
- Pesticide Raw Materials: Used for manufacturing insecticides, fungicides and agricultural chemical intermediates.
- Laboratory & Chemical Analysis: Commonly used as analytical reagents and indicator materials for organic chemical testing.
4. Packaging, Shipping & Storage
Packaging
Standard export packaging adopts 25kg woven bags with inner PE lining. Customized 500kg / 1000kg jumbo bags are available for bulk orders. All packages are sealed firmly to prevent moisture absorption and contamination during transportation.
Shipping
Alpha-Naphthol is delivered with complete export documents including COA, MSDS and REACH compliance certificates. We support FOB, CFR, CIF and DAP trade terms. Stable stock ensures fast shipment within 7–10 working days.
Storage Requirements
- Store in cool, dry and well-ventilated warehouses, away from high temperature, direct sunlight and heat sources.
- Keep packages tightly sealed to avoid moisture absorption, discoloration and agglomeration.
- Separated from strong oxidants, strong acids and flammable materials during storage.
- The valid shelf life is 24 months under standard storage conditions.



