VICTORIA BLUE 4R

Uses

C.I. Basic Blue 8 is a basic dye.

Definition

ChEBI: An iminium salt composed of 4-([4-(dimethylamino)phenyl]{4-[methyl(phenyl)amino]naphthalen-1-yl}methylidene)-N,N-dimethylcyclohexa-2,5-dien-1-iminium and chloride ions in a 1:1 ratio. It binds to nucleic acids and can e used in standardised staining techniques suitable for automated cell-pattern recognition.

Preparation

N-methyl-N-phenylnaphthalen-1-amine and 4-(Dichloro(4-(dimethylamino)phenyl)methyl)-N,N-dimethylbenzenaminereaction.

Properties and Applications

red light blue. Soluble in cold water, soluble in hot water solution for blue, easily soluble in ethanol solution for blue. The strong sulfuric acid for yellow brown, diluted turn green and then into a yellow light first brown. The dye solution to join sodium hydroxide purple brown precipitation.

Standard( Silk )	Light Fastness	Persperation Fastness		Ironing Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
C	1-2					3
A	1	3		3		3

References

[1] Luo Y, et al.A sensitive surface-enhanced Raman scattering method for chondroitin sulfate with Victoria blue 4R molecular probes in nanogold sol substrate. Luminescence. 2018 Feb;33(1):131-137.