113378-31-7 Purity
95%
If you have any other questions or need other size, please get a quote.
Specification
Several boronic acids were screened for their ability to bind to diols, and the results showed that 3-methoxycarbonyl-5-nitrophenylboronic acid (compound 5) binds to catechol dyes and fructose with an affinity comparable to ortho-methylamino-substituted boronic acids. Furthermore, the 3-methoxycarbonyl-5-nitrophenylboronic acid recognition module can be attached to various receptor scaffolds to synthesize sugar-specific sensors.
Determination and analysis of binding constants
· Using a fluorometric method, the binding constants of boronic acids 1-9 and alizarin red S (ARS, 10) were determined. The fluorescence of ARS increases significantly when it binds, making it a useful spectroscopic tool for determining association constants. By monitoring the fluorescence of ARS as boronic acid concentration increases, the binding constant (Ka) was calculated using the Benesi-Hildebrand method.
· To determine the binding of fructose with 5 and 2, a competition assay was conducted using ARS as the indicator. As fructose concentrations were added to a solution of the highly fluorescent boronic acid.ARS complex, the bound ARS was displaced, leading to a decrease in fluorescence. The binding constant between boronic acid and fructose was then calculated using standard methods, with 5 showing a Ka value of 135±270 M-1 and 2 with a Ka of 164±330 M-1. Besides, the addition of electron withdrawing groups to an arylboronic acid can enhance sugar-binding similar to the ortho benzylamine functionality.
Fast exchange speed
Because of the mistake, I bought the wrong specification of 3-methoxycarbonyl-5-nitrophenylboronic acid, and I quickly got the goods after consulting.
The molecular formula is C8H8BNO6.
The molecular weight is 224.97 g/mol.
The IUPAC name is (3-methoxycarbonyl-5-nitrophenyl)boronic acid.
The InChI key is CDGIRLKQNJXHBJ-UHFFFAOYSA-N.
The canonical SMILES is B(C1=CC(=CC(=C1)[N+](=O)[O-])C(=O)OC)(O)O.
The CAS number is 117342-20-8.
The EC number is 833-747-3.
The ChEMBL ID is CHEMB88902.
The hydrogen bond donor count is 2.
The hydrogen bond acceptor count is 6.