Difference between related substances & impurities
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Answer / b.gangatharan
Related substance means some process related compounds or by products and degradation compounds which are unwanted one produced during the manufacturing process of API products.if the related substance is very high means the reaction is not completed properly.the structure and properties of related substance partialy identical with main product.
Impurities means some unwanted substances produced due to contamination during manufacturing process.moreover the structure and properties of impurity will be completely different from the main product.
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Answer / pavana
Related compounds encompass all process-related substances as well as degradants that may be formed. Hence, impurities are a subset of related compounds. That is, all impurities are related compounds but not all related compounds are impurities.
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