634558-52-4Relevant academic research and scientific papers
Syntheses and UV-visible spectroscopic properties of two new hydrophilic 2,6-di(carbamoyl)-substituted solvatochromic pyridinium N-phenolate betaine dyes
Reichardt, Christian,Roechling, Andreas,Schaefer, Gerhard
, p. 682 - 690 (2007/10/03)
Synthesis and negative solvatochromism of two 2,6-di(carbamoyl) -substituted pyridinium N-phenolate betaines dyes were investigated. The exceptionally large negative solvatochromism of the standard betaine dye was used to establish a UV-Vis spectroscopically derived scale of solvent polarity. It was found that the primary indicator dye was sufficiently soluble in most organic solvents.
