CAS · 88-99-3
Product Overview
Pathalic acid 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 crystalline powder |
|---|---|
| Assay | 99% min |
| Melting Point | 196–199℃ |
| Loss on drying | 0.5% max |
Applications
Phthalic acid (CAS 88-99-3) is a widely used aromatic dicarboxylic acid with applications across polymers, resins, plasticizers, dyes, and pharmaceuticals. In the polymer industry, it is a key precursor for producing phthalate esters, which serve as plasticizers in PVC and other plastics to improve flexibility and durability. It is also used in the synthesis of alkyd and polyester resins for paints, coatings, and adhesives. In the dye industry, phthalic acid derivatives are intermediates for azo dyes, pigments, and other colorants. Additionally, it is used in pharmaceuticals as a starting material for the synthesis of certain drugs and as a reagent in biochemical studies and analytical chemistry.
Benefits
The benefits of phthalic acid stem from its chemical versatility, stability, and reactivity. Its two carboxyl groups allow straightforward esterification, amidation, and condensation reactions, making it a flexible intermediate for diverse chemical transformations. The aromatic ring provides thermal and chemical stability, which is essential for producing durable resins and polymers. Its wide availability and cost-effectiveness make it a practical choice for large-scale industrial applications. In pharmaceutical and analytical applications, its defined reactivity and predictable chemical behavior allow precise synthesis and reproducible outcomes.
Conclusion
In summary, phthalic acid is a key aromatic dicarboxylic acid used in polymers, resins, dyes, and pharmaceuticals. Its applications include plasticizer production, resin synthesis, dye intermediates, and pharmaceutical reagents, while its benefits lie in chemical versatility, stability, and cost-effectiveness. As a multifunctional and reliable building block, phthalic acid continues to play an essential role in industrial, research, and commercial applications.
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