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Specifications
| Appearance | Light brown to grey crystal powder |
| Assay (HPLC) | 99.0% min |
| Melting Point | 123–125 °C |
| Loss on drying | NMT 0.5% |
| Water | NMT 0.5% |
| Residue on Ignition | NMT 0.1% |
| Heavy Metals | NMT 0.5% |
| Total Impurity | 1.0% max |
Applications
1,3-Dihydroxynaphthalene (CAS 132-86-5) is an aromatic diol widely used as an intermediate in organic synthesis, materials science, and pharmaceutical research. In chemical synthesis, it serves as a building block for the preparation of dyes, pigments, and antioxidants due to its hydroxyl-functionalized naphthalene structure, which can participate in coupling, condensation, and oxidation reactions. It is also applied in the development of high-performance polymers, resins, and coatings, where its rigid aromatic framework contributes to thermal stability, mechanical strength, and chemical resistance. In pharmaceutical and fine chemical research, 1,3-dihydroxynaphthalene is utilized to synthesize bioactive heterocycles, hydroxy-substituted derivatives, and molecular scaffolds that may exhibit antioxidant, antimicrobial, or enzyme-inhibiting properties. Additionally, it finds use in analytical chemistry as a precursor for derivatization reactions and in academic research for mechanistic studies involving naphtholic compounds.
Benefits
The benefits of 1,3-dihydroxynaphthalene lie in its chemical versatility, structural stability, and reactivity. The two hydroxyl groups positioned on the naphthalene ring enable selective functionalization, hydrogen bonding, and chelation, which are valuable for synthesizing a wide variety of functional molecules. Its rigid aromatic system provides enhanced thermal and chemical stability, making it suitable for high-performance materials and long-lasting pigments. The compound is compatible with a variety of reaction conditions, allowing efficient multi-step synthesis and high yields of target products. Additionally, its well-defined structure and predictable reactivity facilitate reproducible results in both research and industrial applications, reducing process optimization time and improving product consistency.
Conclusion
1,3-Dihydroxynaphthalene is a versatile aromatic diol with broad applications in chemical synthesis, materials science, and pharmaceutical research. Its dual hydroxyl functionality, rigid naphthalene core, and chemical stability enable the development of dyes, polymers, bioactive molecules, and high-performance materials. By providing reliable reactivity, structural robustness, and synthetic flexibility, 1,3-dihydroxynaphthalene remains a valuable intermediate for modern industrial and research-driven chemical applications.
