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  • API and intermediate

  • API Impurities

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  • Applications API impurities are used for analytical testing and quality control to ensure the safety and efficacy of pharmaceutical products. Description An impurity in a 'drug substance/API' may be defined as an unwanted chemical substance which differs from the chemical composition of the drug substance. It may differ in chemistry, structure, enantiomer etc. Preparation API impurities are prepared through controlled…