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832689-24-4 4h-1-benzopyran-3-propanenitrile,4-oxo-a-[(4-oxo-4h-1-benzopyran-3-yl)methylene]-

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Product Name 4H-1-Benzopyran-3-propanenitrile,4-oxo-a-[(4-oxo-4H-1-benzopyran-3-yl)methylene]-
CAS No. 832689-24-4
Molecular Formula C22H13NO4