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SMILES: [13CH]1=[13CH]C(=O)OC1=O Canonical SMILES: O=C1[13CH]=[13CH]C(=O)O1 InChI: InChI=1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H/i1+1,2+1 InChIKey: FPYJFEHAWHCUMM-ZDOIIHCHSA-N
CBID:137579 http://www.chembase.cn/molecule-137579.html