4H-1-Benzopyran-4-one, 2-(4-nitrophenyl)-3-[(4-nitrophenyl)azo]-   Product ID: AC-1077497 Product Name: 4H-1-Benzopyran-4-one, 2-(4-nitrophenyl)-3-[(4-nitrophenyl)azo]- CAS: 139909-22-1 Molecular Formula: C21H12N4O6 MW: 416.34318 Appearance: Assay: Hazard Symbols: N/A Request For Quotation Email:sales@abichem.com

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