What is a Succinic anhydride?

Succinic anhydride is an organic compound with the molecular formula C₄H₄O₃, derived from succinic acid by the removal of one molecule of water. It appears as a white crystalline powder and readily hydrolyzes in the presence of moisture to revert back to succinic acid. Due to its anhydride structure, it is highly reactive and is commonly used in acylation reactions. Succinic anhydride is widely used in the production of polyester resins, alkyd resins, and plasticizers. It also serves as a key intermediate in the synthesis of pharmaceuticals, surfactants, pesticides, and dyes. In recent years, it has gained attention as a raw material for biodegradable plastics and environmentally friendly chemical products. While it offers many industrial benefits, it can be irritating to the skin and eyes, so protective gear is recommended when handling. With its strong reactivity and versatility, succinic anhydride plays an important role in both traditional chemical industries and the development of sustainable technologies.

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