C5H9O6
APtclcactv03241713302D 0   0.00000     0.00000
 
 20 19  0  0  0  0  0  0  0  0999 V2000
    6.8671   -0.2500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    7.7331    0.2500    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
    6.8671   -1.2500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    6.0010    0.2500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    6.0010    1.2500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    5.1350   -0.2500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.1350   -1.2500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    4.2690    0.2500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.2690    1.2500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.4030   -0.2500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.5369    0.2500    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    6.5380    0.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    6.5380    1.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    5.6719   -0.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    4.5981   -1.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    4.8059    0.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    3.7321    1.5600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    3.0044   -0.7249    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    3.8015   -0.7249    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.0000   -0.0600    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  3  2  0  0  0  0
  1  4  1  0  0  0  0
  4  5  1  0  0  0  0
  4  6  1  0  0  0  0
  6  7  1  0  0  0  0
  6  8  1  0  0  0  0
  8  9  1  0  0  0  0
  8 10  1  0  0  0  0
 10 11  1  0  0  0  0
  4 12  1  0  0  0  0
  5 13  1  0  0  0  0
  6 14  1  0  0  0  0
  7 15  1  0  0  0  0
  8 16  1  0  0  0  0
  9 17  1  0  0  0  0
 10 18  1  0  0  0  0
 10 19  1  0  0  0  0
 11 20  1  0  0  0  0
M  CHG  1   2  -1
M  END
> <UNIQUE_SMILES>
OCC(O)C(O)C(O)C([O-])=O

> <USER_SUPPLIED_SMILES>
C([O-])(=O)C(O)C(O)C(O)CO

$$$$
