CAS · 1655-35-2
Product Overview
2,7-Naphthalenedisulfonic acid disodium salt is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | White to off white powder |
|---|---|
| Purity (HPLC): | 98% min |
| Content: | 90% min |
| Water: | 3% max |
| Water insoluble matter: | 0.3% max |
Applications
2,7-Naphthalenedisulfonic acid disodium salt is a versatile sulfonated aromatic compound used extensively in the dye, pigment, and chemical industries. It serves as an intermediate in the synthesis of azo dyes, reactive dyes, and fluorescent brighteners due to its water solubility and ability to form stable sulfonate salts. The compound is also applied in the production of polymer additives, dispersants, and surfactants, improving solubility, dispersion, and processability of materials in aqueous systems. Additionally, it finds use in analytical chemistry as a reagent for colorimetric assays and in the synthesis of naphthalene-based functional materials, including resins, chelating agents, and specialty chemicals. Its disodium salt form ensures compatibility with aqueous formulations and enhances its utility in industrial and laboratory processes.
Benefits
The compound provides several advantages stemming from its sulfonate functionality and aromatic structure. Its high water solubility allows easy incorporation into aqueous systems, facilitating uniform dispersion and stable formulations. The sulfonic acid groups enhance chemical reactivity, enabling efficient coupling with dyes, polymers, and other functional molecules. Its thermal and chemical stability ensures consistent performance during synthesis and in finished products. Additionally, the disodium salt is non-volatile, easy to handle, and compatible with a broad range of reaction conditions, supporting reproducible and high-yield production. Its versatility in modifying both organic and polymeric substrates makes it valuable for industrial, analytical, and research applications.
Conclusion
2,7-Naphthalenedisulfonic acid disodium salt is a key intermediate and functional additive in dyes, pigments, polymers, and specialty chemicals. Its water solubility, chemical stability, and reactive sulfonate groups make it an indispensable compound for producing high-quality industrial formulations, analytical reagents, and functional materials. Its broad applicability supports innovation in both research and large-scale manufacturing processes.
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