Product Description: TSQ is a cytosolic zinc ion fluorescence probe that is membrane permeable and can be used for intracellular imaging of zinc proteins (λmax ~470 nm). TSQ can combine with Zn2+ in the presence of Ca2+ and Mg2+ to produce blue fluorescence[1].
Formula: C17H16N2O3S
References: [1]Meeusen JW, et al. TSQ (6-methoxy-8-p-toluenesulfonamido-quinoline), a common fluorescent sensor for cellular zinc, images zinc proteins. Inorg Chem. 2011 Aug 15;50(16):7563-73.