BRMA78
  -OEChem-04012118422D

  4  3  0     0  0  0  0  0  0999 V2000
    2.8660    0.2500    0.0000 Sn  0  0  0  0  0  0  0  0  0  0  0  0
    2.0000    0.7500    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
    2.8660   -0.7500    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
    3.7320    0.7500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  3  1  0  0  0  0
  1  4  2  0  0  0  0
M  CHG  2   2  -1   3  -1
M  END

$$$$