11 12  0  0000  0  0  0  0  0999 V2000
    3.9800    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0
    3.5679   -1.2642    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    4.3499   -2.3412    0.0000 O   0  0  0  0  0  0  0  0  0  0  0
    3.5679   -3.4181    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    3.9800   -4.6823    0.0000 O   0  0  0  0  0  0  0  0  0  0  0
    2.3037   -3.0061    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    2.3037   -1.6763    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    1.1519   -1.0114    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    0.0000   -1.6763    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    0.0000   -3.0061    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
    1.1519   -3.6710    0.0000 C   0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0
  2  3  1  0
  2  7  1  0
  3  4  1  0
  4  5  2  0
  4  6  1  0
  6  7  1  0
  6 11  2  0
  7  8  2  0
  8  9  1  0
  9 10  2  0
 10 11  1  0
M  END

> <StdInChI>
InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H

> <StdInChIKey>
LGRFSURHDFAFJT-UHFFFAOYSA-N

> <AuxInfo>
1/0/N:9,10,8,11,7,6,2,4,1,5,3/E:(1,2)(3,4)(5,6)(7,8)(9,10)/rA:11nOCOCOCCCCCC/rB:d1;s2;s3;d4;s4;s2s6;d7;s8;d9;d6s10;/rC:3.98,0,0;3.5679,-1.2642,0;4.3499,-2.3412,0;3.5679,-3.4181,0;3.98,-4.6823,0;2.3037,-3.0061,0;2.3037,-1.6763,0;1.1519,-1.0114,0;0,-1.6763,0;0,-3.0061,0;1.1519,-3.671,0;

> <Formula>
C8 H4 O3

> <Mw>
148.1156

> <SMILES>
O=C1C2=CC=CC=C2C(=O)O1

> <CSID>
6552

$$$$