A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Formula: C6H8N2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 123-32-0, Name is 2,5-Dimethylpyrazine, molecular formula is C6H8N2. In an article, author is Zhu, Meiqing,once mentioned of 123-32-0.
A novel pyrene-based fluorescent probe for the rapid and efficient detection of Co2+ in HeLa cells and natural water samples
Excessive levels of Co2+ in the environment can cause serious diseases to humans and affect the growth of crops. Therefore, it is necessary to develop effective methods for monitoring Co2+. In the present work, a novel, low-toxic fluorescent probe, PEPA, for the rapid and efficient detection of Co2+ is synthesized. PEPA shows high sensitivity, with a limit of detection of 0.104 mu M and a fast response to Co2+ (<4 min). The detection mechanism was confirmed by FT-IR. HRMS and DFT calculations. Co2+ can restrict the free rotation of the C=N group and the pyrazine ring of PEPA, resulting in the enhancement of fluorescence. In addition, the recognition process of Co2+ can be realized with the naked eye (i.e., a color change from colorless to blue fluorescence). The successful detection of Co2+ in test strips and environmental water samples provides strong support for its application potential. Interestingly, the recovery rate of Co2+ detected by PEPA can reach 93% after being recovered four times. Importantly, PEPA was suitable for the fluorescence imaging of exogenous Co2+ in HeLa cells. (C) 2020 Elsevier B.V. All rights reserved. If you¡¯re interested in learning more about 123-32-0. The above is the message from the blog manager. Formula: C6H8N2.