1 F95 (7,8-dihydroxy-2-oxo-2h-chromen-4-yl)acetic acid 1.000 2 6Y0 4-butyl-7,8-bis(oxidanyl)chromen-2-one 0.789 3 8MC (7-methoxy-2-oxo-2h-chromen-4-yl)acetic acid 0.789 4 4MU 7-hydroxy-4-methyl-2h-chromen-2-one 0.765 5 HID (5-hydroxy-1h-indol-3-yl)acetic acid 0.722 6 NLA Naphthalen-1-yl-acetic acid 0.722 7 XZZ 6-chloro-7-hydroxy-4-methyl-2h-chromen-2-one 0.722 8 07L 7-hydroxy-2h-chromen-2-one 0.706 9 8CM 8-hydroxycoumarin 0.706 10 ZZ1 4-methyl-2h-chromen-2-one 0.706