phthalic anhydride,:2,5-Isobenzofurandione

White scaly or crystalline powder with white microstrips of other hues.

1. Drug manufacturing
Phthalic anhydride is an important raw material for the manufacture of some drugs, such as anti-inflammatory drugs, gastrointestinal drugs, antibiotics, anti-cancer drugs and so on. Phthalic anhydride is also a precursor for the preparation of many plant hormones such as growth hormone and plant auxin.
2. Dyes and spices
As an intermediate of dyes and fragrances, phthalic anhydride is widely used in dyes and fragrances industry. Such as the manufacture of spices, pigments, synthetic fiber dyes and so on.
3. Plastic and rubber
Phthalic anhydride is also an important raw material for the manufacture of plastics and rubber, mainly used in the manufacture of polyphenyl ethers, polyamides, polyimides and other polymer compounds.
4. Other areas
Phthalic anhydride is also widely used in tobacco manufacturing, cellulose ether, adhesive and so on.

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Will way Petrochemical Co,Ltd.is based inChina Shengli Oitfeld,which is the largest petroleumrefining and chemical base inChina,we areestablished to meet the growing demands for high qualiychemical products at lower costs for various industies,Wihay Petrochemical Co.Ltd,have beendedicaledinsupply and distibufion of all kinds of chemicals since2009,withthe best quality products andexoellent services for cients home and abroad,we havegained worldwide recognition and aooeptance.Ourproducts have been sold to SouthAsia,Middle East,European,SouthAmerica andAfrica around theword.