ChemicalBook -- 14867-54-0
  -INDIGO-01182521002D

  1  0  0  0  0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Gd  0  0  0  0  0 15  0  0  0  0  0  0
M  ISO  1   1 152
M  END