4  3  0  0  0  0  0  0  0  0999 V2000
   30.3631  -19.0758    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0
   30.3572  -17.6799    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   31.7123  -19.4380    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
   29.0081  -19.4380    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0     0  0
  1  3  1  0     0  0
  1  4  1  0     0  0
M  CHG  2   1   1   3  -1
M  END