166520-73-6 2h-1-benzopyran-6-sulfonic acid, 2-oxo-,2-(2,4-dinitrophenyl)hydrazide

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Product Name	2H-1-Benzopyran-6-sulfonic acid, 2-oxo-,2-(2,4-dinitrophenyl)hydrazide
CAS No.	166520-73-6
Molecular Formula	C₁₅H₁₀N₄O₈S

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