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56240-49-4 4h-1-benzopyran-4-one, 2-phenyl-, (2,4-dinitrophenyl)hydrazone

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Product Name 4H-1-Benzopyran-4-one, 2-phenyl-, (2,4-dinitrophenyl)hydrazone
CAS No. 56240-49-4
Molecular Formula C21H14N4O5