Solvent Red 23 是一种疏水性双偶氮染料。

Solvent Red 23 is a solvent dye used to color nonpolar substances.

Sudan III changes its color from orange to blue against a small volume of sulfuric acid, and the acetonitrile solution of Sudan III is the most suitable for observing the color-change phenomenon. (1)H-NMR and UV-Vis spectroscopic studies showed that the color-change mechanism of Sudan III against sulfuric acid is due to the protonation of the dye by sulfuric acid.

85-86-9

C22H16N4O

352.39

111440 Red;Tetrazobenzene-β-naphthol;Sudan Red III;Solvent Red 23;苏丹红Ⅲ

DMSO:5mg/ml(14.18mM),Need ultrasonic
Powder: -20°C for 3 years
In solvent: -80°C for 2 years