Ketcher 08262211092D 1   1.00000     0.00000     0

  2  1  0     0  0            999 V2000
   -0.5000    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.5000    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0     0  0
M  STY  1   1 SUP
M  SLB  1   1   1
M  SAL   1  2   1   2
M  SMT   1 O2
M  END