| 摘要 |
Compounds represented by general formula (1), and reagents containing the same for determining nitrogen monoxide (wherein R1 and R2 are amino groups bonded to the phenyl ring at positions adjacent to each other; R3, R4, R5 and R6 are each independently C1-C6 alkyl; R7, R8, R9 and R10 are each independently hydrogen, C1-C6 alkyl, allyl or halogeno; R11 is hydrogen or C1-C18 alkyl; and X- is an anion). The compounds react with nitrogen monoxide efficiently to produce fluorescent compounds which emit intensive fluorescence when irradiated with a long-wavelength excitation light. The fluorescent compounds are detectable in a fluorescence region wherein little influence of autofluorescence of cells is observed, and characterized in that the intensity of fluorescence is not lowered even under acid conditions. |
