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SMILES: O=C1C(=CC1=O)O Canonical SMILES: OC1=CC(=O)C1=O InChI: InChI=1S/C4H2O3/c5-2-1-3(6)4(2)7/h1,5H InChIKey: KGPQKNJSZNXOPV-UHFFFAOYSA-N
CBID:128436 http://www.chembase.cn/molecule-128436.html