atom_id	symbol	chemical_shift	mult	coupling
23	H	6.18	d	15.5
24	H	7.28	dd	15.5,10.8
25	H	6.8	dd	15.5,10.8
26	H	6.95	d	15.5
27	H	7.35	d	8.5
28	H	6.62	d	8.5
29	H	NA	NA	NA
30	H	6.62	d	8.5
31	H	7.35	d	8.5
32	H	2.73	t	7.4
33	H	2.73	t	7.4
34	H	2.82	t	7.4
35	H	2.82	t	7.4
36	H	6.98	d	8.5
37	H	6.63	d	8.5
38	H	NA	NA	NA
39	H	6.63	d	8.5
40	H	6.98	d	8.5
