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What is the difference between API and pharmaceutical intermediates? The main difference between the two is that the API is an active product that has completed the synthesis route, and the intermediate is a product in a certain place in the synthesis route.

Difference between API and pharmaceutical intermediates — detailed explanation

Both active pharmaceutical ingredients and intermediates belong to the category of fine chemicals. Intermediates are something that is produced in the manufacturing of API and requires further molecular changes to become APIs. Intermediates can be separated or not separated.