Mrv1909 02282022332D          

  3  2  0  0  0  0            999 V2000
    0.0000    0.8250    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    0.0000    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.8250    0.0000 C   0  5  0  0  0  0  0  0  0  0  0  0
  2  1  1  0  0  0  0
  2  3  3  0  0  0  0
M  CHG  2   2   1   3  -1
M  END