Table 2.

¹H NMR chemical shifts (δ, ppm) for CH protons of puerarin alone and their complexation-induced shifts (CIS) when in complex with β-CDs (30°C, D₂O)

D2O	H-2	H-5	H-6	H-2′6′	H-3′5′	H-1″	H-2″	H-3″	H-4″	H-5″	H-6″
δ	8.209	8.061	7.085	7.364	6.957	5.145	4.264	3.621	3.621	3.621	3.894
											3.793
CIS	− 0.069	0.079	0.030	− 0.043	− 0.008	− 0.005	0.018	a	a	a	0.015

a not determined due to spectral overlap