ChemicalBook Product Catalog Dyes and Pigments dye Acid dye Acid Brown 121

Acid Brown 121

Acid Brown 121 Basic information
Product Name:Acid Brown 121
Synonyms:Brown SFR;Acid Brown H;4-Hydroxy-5-[[3-[(2-hydroxy-5-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulfonic acid disodium salt;C.I.33520;Corium Acid Dark Brown MG;FDCRYNDCYLYSJW-CDEBPZJLSA-N;Acid Brown 121;disodium,(3Z)-5-[(2Z)-2-[(5E)-5-[(2-hydroxy-5-nitrophenyl)hydrazinylidene]-4,6-dioxocyclohex-2-en-1-ylidene]hydrazinyl]-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
CAS:6487-04-3
MF:C28H19N8NaO14S2
MW:778.61
EINECS:
Product Categories:
Mol File:6487-04-3.mol
Acid Brown 121 Structure
Acid Brown 121 Chemical Properties
Safety Information
MSDS Information
Acid Brown 121 Usage And Synthesis
Preparation4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?diazo, Coupled with resorcinol, 4-Nitrobenzenamine diazo, and the generation of single accidentally coupled nitrogen compounds, its product again with diazo of 2-Amino-4-nitrophenol coupling.
Properties and Applicationsdark yellow light brown. Soluble in water for brown. The strong sulfuric acid for wine, dilute after brown precipitation. In water solution to join strong hydrochloric acid with brown precipitation; Join rare sodium hydroxide solution for red brown.
Acid Brown 121 Preparation Products And Raw materials
Raw materialsResorcinol-->8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate-->2-Amino-4-nitrophenol-->4-Nitroaniline
Chromate(3-), bis[3-[[2-(amino-κN)-4-amino-5-chlorophenyl]azo-κN1]-2-(hydroxy-κO)-5-nitrobenzenesulfonato(3-)]-, disodium hydrogen trisodium 2,4-bis[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]benzenesulphonate ACID BROWN 13 Acid Brown 14 disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate Acid Brown 144 4-Hydroxy-6-[[3-[(2-hydroxy-3-nitro-5-sodiosulfophenyl)azo]-2,4-dihydroxyphenyl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2-sulfonic acid sodium salt disodium hydrogen bis[4-[[2,6-dihydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]phenyl]azo]-3- methylbenzenesulphonato(3-)]chromate(3-) 2,4-Bis[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulfonic acid sodium salt
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