N2258.sdf
  ChemDraw07221413082D

  1  0  0  0  0  0  0  0  0  0999 V2000
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M  CHG  1   1   1
V    1 0
M  END
$$$$
N2258.sdf
  ChemDraw07221413082D

  1  0  0  0  0  0  0  0  0  0999 V2000
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M  CHG  1   1   1
V    1 1
M  END
$$$$
N2258.sdf
  ChemDraw07221413082D

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    0.6143   -1.4187    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
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    0.6143    1.4187    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
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    0.6143    0.7093    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  6  1  1  1      
  7  1  1  1      
  2 12  1  0      
  3 12  2  0      
  4 13  1  0      
  5 13  2  0      
  6  8  1  0      
  6 10  1  0      
  7  9  1  0      
  7 11  1  0      
  8  9  1  0      
  8 12  1  1      
  9 13  1  1      
 10 11  1  0      
M  CHG  2   2  -1   4  -1
V    1 2
V    2 3
V    3 4
V    4 5
V    5 6
V    6 7
V    7 8
V    8 9
V    9 10
V   10 11
V   11 12
V   12 13
V   13 14
M  END
$$$$
