Phthalic Anhydride (PA), identified by its CAS number 85-44-9, is an exceptionally versatile chemical intermediate that plays a crucial role in a multitude of industrial formulations. As a leading Phthalic Anhydride manufacturer and supplier based in China, we provide a high-purity grade (99.5%) that is essential for achieving superior performance in downstream products. Understanding the broad applicability of PA is key for R&D professionals and procurement managers looking for reliable chemical inputs.

The primary utility of Phthalic Anhydride lies in its capacity to act as a precursor for phthalate ester plasticizers. These plasticizers are critical additives that enhance the flexibility, durability, and processability of polymers, most notably PVC. Industries such as automotive, construction, and electronics rely on these plasticized materials for applications like wire and cable coatings, vinyl flooring, roofing membranes, and automotive interiors. For manufacturers in these sectors, sourcing high-quality Phthalic Anhydride directly influences the performance characteristics of their finished goods.

Beyond its significant role in plasticizers, Phthalic Anhydride is indispensable in the synthesis of various resins. Alkyd resins, produced using PA, are a staple in the paint and coatings industry, providing excellent adhesion, gloss, and weather resistance for architectural and industrial applications. Furthermore, Phthalic Anhydride is a key building block for unsaturated polyester resins (UPR). When reinforced with glass fibers, UPRs form composite materials that are lightweight yet strong, finding extensive use in marine, transportation, and sporting goods sectors. When you consider to buy phthalic anhydride, its suitability for specific resin types is a critical factor.

The chemical reactivity of Phthalic Anhydride also makes it a vital intermediate in the production of dyes and pigments, lending vibrant colors and specific properties to textiles, inks, and plastics. Its applications also extend to pharmaceuticals, herbicides, insecticides, and flame retardants, demonstrating its widespread importance in chemical manufacturing and formulation.

As a trusted Phthalic Anhydride manufacturer in China, we are committed to delivering consistent quality, reliable supply, and competitive pricing. Our state-of-the-art production facilities and stringent quality control ensure that our PA meets global industry standards. We invite businesses to inquire about our Phthalic Anhydride price and to explore how our dependable supply can support your critical chemical formulations. Partner with us for your Phthalic Anhydride needs and experience the advantages of working with a premier chemical supplier.