
     RDKit          2D

  0  0  0  0  0  0  0  0  0  0999 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 1 0 0 0 0
M  V30 BEGIN ATOM
M  V30 1 Pb 0.000000 0.000000 0.000000 0 VAL=-1
M  V30 END ATOM
M  V30 END CTAB
M  END
