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26506-03-6 4h-1-benzopyran-4-one, 5-hydroxy-3-(4-nitrobenzoyl)-2-(4-nitrophenyl)-

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Product Name 4H-1-Benzopyran-4-one, 5-hydroxy-3-(4-nitrobenzoyl)-2-(4-nitrophenyl)-
CAS No. 26506-03-6
Molecular Formula C22H12N2O8