1. O
S NH O NH S
NH NH
NO2 NO2
C28H18N6O6S2
Exact Mass: 598.07
Mol. Wt.: 598.61
m/e: 598.07 (100.0%), 599.08 (30.7%), 600.07 (9.8%), 600.08 (6.3%), 599.07 (3.8%), 601.07 (3.1%)
C, 56.18; H, 3.03; N, 14.04; O, 16.04; S, 10.71

2. O
7.16 7.16
7.30 7.30
6.75 6.75
S NH O HN S
4.0 4.0
6.72 6.72
NH HN
7.94 4.0 4.0 7.94
O O
6.72 6.72
N+ 7.94 7.94 N+
O- -
O
8 7 6 5 4 3 2 1 0
PPM