Pharmaceutical intermediates are the intermediate compounds necessary in API production, referred to as the building blocks of APIs. Intermediates are the by-products of the reactions in the API production process. Each reaction in the production process may produce several intermediates, depending on the analysis, which can be used as precursors for other active pharmaceutical ingredients. The conversion of intermediates to active ingredients can be achieved by further refinement processes.
Pharmaceutical intermediates are used in various stages of drug development, including discovery, preclinical testing, and clinical trials.
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