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164471-10-7 2h-1-benzopyran-3,6-disulfonic acid, 2-oxo-,bis[2-(2,4-dinitrophenyl)hydrazide]

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Product Name 2H-1-Benzopyran-3,6-disulfonic acid, 2-oxo-,bis[2-(2,4-dinitrophenyl)hydrazide]
CAS No. 164471-10-7
Molecular Formula C21H14N8O14S2