Figure 1.
Chemical structures of 3-CQA, 4-CQA, 5-CQA, 3,4-diCQA, 3,5-diCQA, 4,5-diCQA, 3-FQA, 4-FQA, 5-FQA, 3-p-CoQA, 4-p-CoQA, and 5-p-CoQA.
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