A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 103-45-7, Name is Phenethyl acetate, molecular formula is C10H12O2. In an article, author is Lee, Jae Jun,once mentioned of 103-45-7, Computed Properties of https://www.ambeed.com/products/103-45-7.html.
A new multifunctional and highly selective chemosensor 1 for Co2+ and Cu2+ was designed and synthesized. 1 could simultaneously detect both Co2+ and Cu2+ by changing its color from pale yellow to pink and to orange in a near-perfect aqueous solution. The binding modes of 1 to Co2+ and Cu2+ were determined to be a 2 : 1 complexation stoichiometry through Job’s plot, ESI-mass spectrometry analysis and H-1 NMR titration. The detection limits (1.5 and 2.1 mu M) of 1 for Co2+ and Cu2+ were lower than the DEP guidelines (1.7 mu M for Co2+) and the WHO guidelines (31.5 mu M for Cu2+) for drinking water. The chemosensor 1 could be used to quantify Co2+ and Cu2+ in water samples. Moreover, 1 could be used as a practical, visible colorimetric test kit for both Co2+ and Cu2+. The sensing mechanisms of Co2+ and Cu2+ by 1 were supported by theoretical calculations.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem