Fast Blue B Salt is a diazonium salt used as a reagent in the production of azo dyes. It contains two diazonium groups and is supplied as a zinc chloride double salt, contributing to its stability and reactivity in dye synthesis.
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CAS 84633-94-3
(2E)-2-[(2E,4E,6E)-7-[3-(5-carboxypentyl)-1,1-dimethyl-6,8-disulfobenzo[e]indol-3-ium-2-yl]hepta-2,4,6-trienylidene]-3-ethyl-1,1-dimethyl-6-sulfobenzo[e]indole-8-sulfonate
fluorescent dye for labeling
Sodium 2-(2,3-dihydro-1,3-dioxo-1H-inden-2-yl)quinoline-6-sulphonate
yellow dye for coloring
Sudan III
biological stain and histological dye
Tripotassium; 5,6-diaminonaphthalene-1,3-disulfonate; iron(3+)
Dye or pigment intermediate
4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;tetrachlorozinc(2-)
GPPKNJIWDULNQH-UHFFFAOYSA-J
COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]#N)OC)[N+]#N.Cl[Zn-2](Cl)(Cl)Cl