| abstract |
The invention discloses a kind of pyrido benzimidazole cysteine ratio fluorescent probes, the probe is N- (2- ((7- chloro- 2,1,3- benzoxadiazole) -4- sulfonamide) ethyl) simultaneously benzimidazole -3- formamide, chemical structural formula are as the formula (1) for -4- phenylpyridine.Fluorescence probe of the invention in DMSO/ water (volume ratio 4:6) solution to cysteine have preferable fluorescence selectivity, higher sensitivity and it is stronger resist other ion interference abilities, have great application prospect. |