- Assay (HPLC): ≥98.0%
- Appearance: White to off-white crystalline powder
- Melting Point: 160–163 °C
- Loss on Drying: ≤0.5%
- Residue on Ignition: ≤0.1%
- Single Impurity: ≤0.2%
- Total Impurity: ≤1.0%
Applications
2,3-Dihydroxynaphthalene is a classic naphthalene dihydroxy derivative with high chemical activity, easily participating in condensation, oxidation, substitution and complexation reactions. It is an indispensable key intermediate in organic synthesis, widely used for the construction of fused heterocyclic compounds, aromatic derivatives and dye molecular skeletons.
In dye and pigment industry, it is the core raw material for manufacturing azo dyes, sulfur dyes, organic pigments and mordant dyes, with excellent color rendering and color fastness properties. In pharmaceutical field, it is used for the synthesis of antioxidant, anti-inflammatory and antibacterial drug intermediates, as well as raw materials for enzyme inhibitors and biological analytical reagents. It also serves as an important developer, metal ion complexing agent and analytical reagent for chemical detection, meanwhile widely applied in organic optoelectronic materials, chemical additives and laboratory synthetic methodology research.
Safety Information
This substance is irritating to skin, eyes and respiratory tract. Direct skin contact may cause redness, itching and mild inflammatory stimulation; long-term repeated exposure may lead to skin dryness and allergic sensitization. Eye contact will cause obvious stinging, conjunctival congestion and tearing, needing immediate rinsing with plenty of running clean water. Inhalation of dust will irritate nasal and bronchial mucosa, causing throat discomfort, cough and respiratory tract irritation. Accidental ingestion may induce nausea, stomachache and other mild gastrointestinal discomfort symptoms.
It has certain toxicity to aquatic organisms and shall not be discharged directly into water bodies, sewage and soil. During operation, work in a well-ventilated fume hood, wear nitrile protective gloves, chemical safety goggles and dust mask. Avoid dust generation, keep away from high temperature, open flame and strong oxidants. Store sealed, away from light and air to prevent oxidative discoloration. Waste residues and empty containers must be disposed in accordance with hazardous chemical waste regulations to avoid environmental pollution and health risks.
Product
