Succinic Anhydride (SA),CAS No. 108-30-5, molecular formula C₄H₄O₃, is white flaky solid with melting point of approximately 117–121°C.It's an important cyclic acid anhydride containing reactive anhydride groups, and soluble in organic solvents such as acetone and ethyl acetate.
Succinic anhydride is produced via the catalytic hydrogenation of maleic anhydride (MA). In this process, the carbon-carbon double bond within the maleic anhydride molecule undergoes selective hydrogenation in the presence of a catalyst, converting it into the structurally stable succinic anhydride. This route utilizes readily available raw materials and involves a direct reaction pathway, making it a key method for the industrial production of succinic anhydride.
During production, the purity of the maleic anhydride feedstock, the catalytic hydrogenation conditions, and the subsequent purification processes directly influence the purity and stability of the final product. Achieving high-purity succinic anhydride (≥99.5%) requires strict control over key impurities, such as trace elements and moisture content.
Applications
- Pharmaceutical Intermediates:participates in acylation, cyclization, and other organic synthesis reactions, used to construct succinyl-containing compounds and serves as a starting material or intermediate in certain pharmaceutical synthesis pathways.
- Resins, Coatings, and Adhesives:used as a raw material for resin synthesis or modification, polyester materials and other functional resins.
- Agrochemical Intermediates:used in the synthesis of certain pesticides, plant growth regulators, and other agrochemicals.
- Polymer Materials and Polyesters:Used in polyester synthesis and the functional modification of polymers.
Surfactants, Dyes, and Other Fine Chemicals:serves as a reaction raw material or functionalizing agent,usd in certain surfactants, dyes, specialty additives, and other organic compounds.
Handan Huajun Chemical Co., Ltd. is a long-term supplier of high-purity succinic anhydride,and a professional manufacturer and supplier of pharmaceutical intermediates and fine chemicals,with 19 years of production experience and ISO9001:2015 certification. We can provide COA ,MSDS and sample for evaluation.
