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872425-33-7 4h-thieno[3,4-c][1]benzopyran-4-one, 3-amino-1-[(4-nitrophenyl)azo]-

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Product Name 4H-Thieno[3,4-c][1]benzopyran-4-one, 3-amino-1-[(4-nitrophenyl)azo]-
CAS No. 872425-33-7
Molecular Formula C17H10N4O4S