5304-74-5 2H,5H-Pyrano[3,2-c][1]benzopyran-2,5-dione 2H,5H-Pyrano[3,2-c][1]benzopyran-2,5-dione

Synonyms：2H-1-Benzopyran-3-acrylicacid, 4-hydroxy-2-oxo-, d-lactone (7CI); 2-Pentenedioic acid, 4-[hydroxy(2-hydroxyphenyl)methylene]-,di-d-lactone; 3,4-Coumarin-a-pyrone
CAS Number：5304-74-5
Molecular Formula：C₁₂H₆O₄
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