Mrv1572004061616032D          

  4  2  0  0  0  0            999 V2000
    0.0295    0.3904    0.0000 Ca  0  2  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.3903    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.8250   -0.3903    0.0000 N   0  5  0  0  0  0  0  0  0  0  0  0
   -0.8250   -0.3903    0.0000 N   0  5  0  0  0  0  0  0  0  0  0  0
  2  3  2  0  0  0  0
  2  4  2  0  0  0  0
M  CHG  3   1   2   3  -1   4  -1
M  END