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490019-49-3 3h-2-benzopyran-3-one, 1,4-dihydro-4-[(2-nitrophenyl)methylene]-,(4z)-

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Product Name 3H-2-Benzopyran-3-one, 1,4-dihydro-4-[(2-nitrophenyl)methylene]-,(4Z)-
CAS No. 490019-49-3
Molecular Formula C16H11NO4