System	H1	H2	H3	H4	H5	H6	OH2	OH3	OH6
NS	4.827	3.300	3.627	3.361	3.579	3.655	5.705	5.673	4.440
NS-CYT	4.822	3.297	3.621	3.359	3.572	3.652	5.712	5.678	4.443
Δδ	0.005	0.003	0.006	0.002	0.007	0.003	−0.007	−0.005	−0.003