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Acid brown 235
Product Name
Acid brown 235
CAS
12269-90-8
MF
MW
0
EINECS
MOL File
Mol File
Usage And Synthesis
Preparation
4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?diazo, Coupled with resorcinol; 4-Nitrobenzenamine and 4-nitro-4′-aminoazobenzene-2-sulfonic acid?diazo, respectively, and the above product matches.
Properties and Applications
dark brown. Mainly used for leather shading.
Preparation Products And Raw materials
Raw materials
4-nitro-4'-aminoazobenzene-2-sulfonic acid
Resorcinol
8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate
4-Nitroaniline
Acid brown 235 Supplier
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Related Product Information
Iron, 4-[[5-(3,5-dinitrophenyl)azo]-2,4-dihydroxy-3-[(4-nitrophenyl)azo]]-5-hydroxy-2,7-naphthalenedisulfonic acid complex
disodium 5-[[2,4-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo]-2-(phenylamino)benzenesulphonate
C.I. Acid Brown 234
Acid Brown 214
Chromate(1-), bis[4-[[2-(hydroxy-κO)-5-nitrophenyl]azo-κN1]-2-(phenylazo)-1,3-benzenediolato(2-)-κO3]-, hydrogen
Ethanesulfonic acid, 2-[methyl[4-[(2,4,6-trinitrophenyl)amino]phenyl]amino]-, monosodium salt
10H-Phenoxazine-4-carboxylic acid, 7,9-dinitro-2-sulfo-, monosodium salt
Acid Brown 21
5-[[4-(aminosulphonyl)-2-nitrophenyl]amino]-2-[[4-[[4-(aminosulphonyl)-2-nitrophenyl]amino]phenyl]amino]benzenesulphonic acid
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