ChemicalBook -- 676-80-2
  -INDIGO-05172401442D
  4  3  0  0  0  0  0  0  0  0999 V2000
    1.3337    1.5400    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    2.3101    0.0000 D   0  0  0  0  0  0  0  0  0  0  0  0
    2.6673    2.3101    0.0000 D   0  0  0  0  0  0  0  0  0  0  0  0
    1.3337    0.0000    0.0000 D   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  1  0  0  0  0
M  END