{"id":833,"count":3,"description":"Succinic acid is a naturally occurring dicarboxylic acid that is commonly used in biologics manufacturing as a buffer component and pH adjuster to help maintain formulation stability. In therapeutic protein and vaccine drug products, succinic acid (often used in its salt form, such as sodium succinate) helps control and resist pH shifts that can otherwise contribute to protein degradation pathways like aggregation, deamidation, or loss of potency over time. 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