B1656.sdf
  ChemDraw11151814582D

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   -2.6811    0.0014    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
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  2 12  2  0      
  3 17  1  0      
  4 17  2  0      
  5  7  1  0      
  6  7  1  0      
  6  9  1  0      
  6 10  2  0      
  7  8  2  0      
  8 11  1  0      
  8 12  1  0      
  9 17  1  0      
 13 10  1  0      
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 12 14  1  0      
 14 15  1  0      
 14 16  2  0      
 15 18  2  0      
 19 16  1  0      
 18 20  1  0      
 20 19  2  0      
M  CHG  2   1   1   3  -1
V    1 0
V    2 1
V    3 2
V    4 3
V    5 5
V    6 6
V    7 7
V    8 8
V    9 9
V   10 10
V   11 11
V   12 12
V   13 13
V   14 14
V   15 15
V   16 16
V   17 17
V   18 18
V   19 19
V   20 20
V   21 4
M  END
$$$$
