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Certified Reference Standards...
Chemical Name: 4-Hydroxy-2H-1-benzopyran-2-one
Synonym: 4-Hydroxycoumarin ;
Smiles: O=C1C=C(O)C2=CC=CC=C2O1
Inchi: InChI=1/C18H16O2/c19-16-11-14(13-6-2-1-3-7-13)10-15(12-16)17-8-4-5-9-18(17)20/h1-9,12,14,20H,10-11H2
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