2  0  0  0  0  0  0  0  0  0999 V2000
   20.3700  -16.1700    0.0000 Ca  0  2  0  0  0  0  0  0  0  0  0  0
   23.8700  -16.1700    0.0000 S   0  6  0  0  0  0  0  0  0  0  0  0
M  CHG  2   1   2   2  -2
M  END