Provided are a fluorescent on/off switchable compound for a gene analysis, which is highly stable and highly sensitive, and enables amplification and observation of a trace gene signal, and a labeling reagent for detection of a bio-related material, which uses the fluorescent on/off switchable compound. A compound represented by the following formula (I′):
wherein X is a hydrogen atom or a carboxylic acid-protecting group, Y is a 2,4-dinitrobenzenesulfonyl group, a 2-cyano-4-nitrobenzenesulfonyl group or a 5-nitropyridin-2-ylsulfonyl group, R1, R2, R3 and R4 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group having a carbon number of 1 to 6, an alkoxy group having a carbon number of 1 to 6, an aryl group having a carbon number of 6 to 10, or a cyano group.
提供了一种高度稳定、高度敏感的荧光开/关可控化合物,用于
基因分析,能够扩增和观察微量
基因信号,并且使用该荧光开/关可控化合物作为检测
生物相关物质的标记试剂。该化合物由以下式子(I')表示:其中X是氢原子或
羧酸保护基,Y是2,4-
二硝基苯磺酰基、2-
氰基-4-
硝基苯磺酰基或5-
硝基吡啶-2-基磺酰基,R1、R2、R3和R4分别是氢原子、卤素原子、羟基、碳数为1至6的烷基、碳数为1至6的烷氧基、碳数为6至10的芳基或
氰基。