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6-Fluorochroman-2-carboxylic acid: BD7532699199-60-797%; ￥146.05g

Chromane-2-carboxylic acid: BD12113851939-71-097%; ￥541.025g

6-Bromochroman-2-carboxylic acid: BD7532499199-54-998%; ￥1684.01g

6-Methoxychroman-2-carboxylic acid: BD7532099199-69-697%; ￥3423.01g

6-Chlorochroman-2-carboxylic acid: BD7532540026-24-297%; ￥946.0250mg

7-Hydroxychromane-2-carboxylic acid: BD01404411944904-28-395%; ￥262.0100mg

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