Task: Please create a SMILES based on the description below.
Description: The molecule is a dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 4-carboxy-2-hydroxymuconate semialdehyde hemiacetal; major species at pH 7.3. It is a conjugate base of a 4-carboxy-2-hydroxymuconate semialdehyde hemiacetal.
Result: O=C([O-])C1=CC(O)OC(C(=O)[O-])=C1
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
2-hydroxy-2H-pyran-4,6-dicarboxylate
The molecule is a dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 4-carboxy-2-hydroxymuconate semialdehyde hemiacetal; major species at pH 7.3. It is a conjugate base of a 4-carboxy-2-hydroxymuconate semialdehyde hemiacetal.