Trypan Red is a sulfonated azo dye used as a biological stain. Its structure features multiple sulfonate groups and sodium counterions, giving it high water solubility.
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CAS 574-64-1
Brilliant green
Biological stain and dye
Methylene blue trihydrate
Biological stain and dye
Crystal violet
Biological stain and dye
Ultramarine
blue pigment for paints and coatings
6-Hydroxynaphthalene-1,3-disulfonic acid
precursor to azo dyes
6-nitro-m-toluidine
Dye intermediate
1-Naphthol-3,6-disulfonic acid
intermediate for azo dyes
Acid red 97
acid dye for textiles
pentasodium;3-amino-4-[[4-[4-[(2-amino-3,6-disulfonatonaphthalen-1-yl)diazenyl]-3-sulfonatophenyl]phenyl]diazenyl]naphthalene-2,7-disulfonate
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C1=CC(=CC=C1C2=CC(=C(C=C2)N=NC3=C4C=CC(=CC4=CC(=C3N)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC5=C6C=CC(=CC6=CC(=C5N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+].[Na+]