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What are the criteria used to determine chemical structure confidence levels?

April 26, 2017chemical confidence criteria determine levels structure Used

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What are the criteria used to determine chemical structure confidence levels?

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Chemical structures are given unique confidence levels as a measure of validity for that structure based on the following criteria: • Level 1 – Structure has been confirmed by Chemical Abstracts Service or the developing company as the correct structure. • Level 2 – Structure identified in Merck index or published by WHO or USAN council. • Level 3 – Structure identified in a peer-reviewed journal. • Level 4 – Structure identified in a non-peer reviewed printed source, such a meeting handout, press release, or non-company website.