4-Methyl-7- (4-nitrophenoxy) -2H-chromen-2-one

This fluorescent coumarin derivative, 4-methyl-7- (4-nitrophenoxy) -2H-chromen-2-one, exhibits excitation/emission maxima at 323 nm and 445 nm. It serves as a versatile biochemical probe for in vitro assays, including enzyme activity studies and fluorescence-based sensing applications in analytical and bioorganic chemistry research.