Phthalic Acid (CAS 88-99-3): Key Industrial Intermediate for Plasticizers, Dyes, and Resins
Discover the essential role of Phthalic Acid (CAS 88-99-3) as a fundamental industrial chemical. As a leading supplier, we provide high-purity Phthalic Acid, crucial for manufacturing plasticizers, dyes, polyester resins, and more, driving innovation across industries.
Get a Quote & SamplePhthalic Acid: The Foundation for Flexible Materials and Vibrant Colors

Phthalic Acid
As a premier manufacturer and supplier of Phthalic Acid in China, we offer industrial-grade material with a purity of ≥99%. This versatile chemical is indispensable for creating high-performance plasticizers, vibrant dyes, and durable polyester resins, making it a cornerstone for numerous manufacturing processes. Our commitment to quality ensures you receive a reliable raw material for your production needs.
- Source High-Purity Phthalic Acid for Optimal Plasticizer Performance: Essential for producing flexible PVC products used in wire insulation, flooring, and wallpapers, enhancing product longevity and flexibility.
- Phthalic Acid as a Key Dye and Pigment Intermediate: Leverage our Phthalic Acid supply to create a wide spectrum of colors for textiles, coatings, and inks, meeting stringent industry demands.
- Reliable Supplier for Polyester Resin Production: Procure industrial-grade Phthalic Acid to manufacture robust polyester resins used in paints, coatings, and adhesives, ensuring superior adhesion and weather resistance.
- Cost-Effective Phthalic Acid for Chemical Synthesis: Benefit from competitive pricing on Phthalic Acid (CAS 88-99-3), an essential building block for saccharin, perfumes, and other fine chemicals, available for bulk purchase.
Advantages of Sourcing Phthalic Acid from Us
Uncompromising Purity & Quality
Our industrial-grade Phthalic Acid boasts ≥99% purity, guaranteed through rigorous testing. This ensures consistent results and optimal performance in your downstream applications, making us a trusted supplier.
Versatile Application Spectrum
From enhancing plastic flexibility to enabling vibrant dye formulations and durable resin synthesis, Phthalic Acid is a foundational chemical. We supply this key intermediate to diverse industries, understanding its broad utility.
Competitive Pricing & Reliable Supply
As a dedicated manufacturer and supplier, we offer competitive pricing for Phthalic Acid. Secure a stable supply chain with our robust production capacity and efficient logistics, ensuring you can buy with confidence.
Key Applications of Phthalic Acid
Plasticizers
Phthalic acid is primarily used to produce phthalate esters (phthalates), crucial plasticizers that impart flexibility, transparency, and durability to polymers like PVC. These are vital for products such as wire insulation, flooring, and medical devices.
Dyes and Pigments
It serves as a key intermediate in the synthesis of various dyes, including phenolphthalein and phthalocyanine pigments, contributing to the vibrant coloration of textiles, plastics, and printing inks.
Polyester Resins
Phthalic acid is a fundamental component in the production of alkyd and polyester resins, widely used in the manufacturing of paints, coatings, adhesives, and varnishes due to their excellent film-forming and adhesive properties.
Other Chemical Synthesis
It is also used in the production of saccharin, perfumes, and various other organic chemicals, demonstrating its broad utility as a chemical synthesis raw material.