Basic Blue 16, with the CAS number 4569-88-4, is a synthetic dye belonging to the class of cationic dyes, specifically used in various applications such as textiles, paper, and biological staining. It is characterized by its vibrant blue color, which is attributed to its chromophore structure. The dye is soluble in water, making it suitable for use in aqueous solutions. Basic Blue 16 exhibits good lightfastness and is often employed in applications requiring bright coloration. However, like many synthetic dyes, it may pose environmental and health concerns, necessitating careful handling and disposal. The dye interacts with negatively charged surfaces, which enhances its affinity for fabrics and biological materials. Its application in histology and microbiology is notable, as it can be used to stain cellular components, aiding in the visualization of structures under a microscope. Overall, Basic Blue 16 is a versatile dye with significant utility in various fields, though its environmental impact should be considered in its use.

Basic Blue 16

4569-88-4: 3-Amino-2,8-dimethyl-7-(2-hydroxy-1-naphthylazo)-5-phenylazinium chloride, 3-Amino-2,8-dimethyl-7-(2-hydroxy-1-naphthylazo)-5-phenylphenazinium chloride, 3-Amino-7-[(2-hydroxy-1-naphthyl)azo]-2,8-dimethyl-5-phenylphenazinium chloride, 3-amino-2,8-dimethyl-7-[2-(2-oxonaphthalen-1(2H)-ylidene)hydrazino]-5-phenylphenazin-5-ium chloride, Basic blue 16, Indazol Blue R, Indoine Blue 3B, Indoine Blue R, Janus blue, Phenazinium, 3-amino-7-[(2-hydroxy-1-naphthalenyl)azo]-2,8-dimethyl-5-phenyl-, chloride, Phenazinium, 3-amino-7-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-2,8-dimethyl-5-phenyl-, chloride (1:1),  C.I. Basic Blue 16, C.I. Basic Blue 16, C.I. 12210

Janus blue

Indoine blue is a dye that can be used for the staining of cell nuclei in tissue sections. Indoine blue is a molecule with an acidic and basic dye group, which can be titrated with hydrochloric acid and amines to produce different colors. Indoine blue has been shown to have affinity values of 0.06 to 0.1 M in agarose gels and polymer films, respectively. Indoine blue is also an electron-rich molecule with an oxidation potential of -0.36 V (versus SCE).

CAS 4569-88-4: Basic Blue 16

Janus blue

Ref: TM-T32263

Indoine Blue

Ref: 3D-FI52675