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7-Methoxychroman-3-carboxylic acid: BD283453187-51-796%; ￥501.01g

Chroman-3-carboxylic acid: BD27253115822-57-696%; ￥31.0100mg

5-Methoxychroman-3-carboxylic acid: BD332905112904-78-697%; ￥536.0100mg

(S)-Chroman-3-carboxylic acid: BD4410361260611-90-295%; ￥162.0250mg

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