Reaction-Based Europium Complex for Specific Detection of Cysteine Over Homocysteine and Glutathione with Variable-Temperature Kinetic Studies was written by Yip, Yuk-Wang;Yan, Zhiyuan;Law, Ga-Lai;Wong, Wing-Tak. And the article was included in European Journal of Inorganic Chemistry in 2019.Reference of 131747-45-0 This article mentions the following:
A water-soluble europium(III)-based probe, EuL, has been designed and synthesized for selective recognition of cysteine (Cys) over other structurally similar thiols and amino derivatives due to formation of a more stable and preferable seven-membered ring. Addition of Cys shows a significant response with quenching of over 90% of the initial signal (Hcys: 10.5%, GSH: 3.6% resp.). A good linear correlation between the emission intensities and concentrations of Cys has been established. In the experiment, the researchers used many compounds, for example, (4-Bromopyridin-2-yl)methanol (cas: 131747-45-0Reference of 131747-45-0).
(4-Bromopyridin-2-yl)methanol (cas: 131747-45-0) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Reference of 131747-45-0