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2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt

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2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Basic information
Product Name:2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt
Synonyms:2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt;Benzo Grey S;C.I.31760;C.I.Direct Black 40;Benzoic acid, 2-hydroxy-5-((4'-((4-((1-hydroxy-4-sulfo-2-naphthalenyl)azo)-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, disodium salt;Direct Black 40;C.I.Direct Black 40:C.I.31760
CAS:6449-81-6
MF:C39H24N6Na2O7S
MW:766.6884
EINECS:
Product Categories:
Mol File:6449-81-6.mol
2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Structure
2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Chemical Properties
EPA Substance Registry SystemC.I. Direct Black 40 (6449-81-6)
Safety Information
MSDS Information
2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Usage And Synthesis
Preparation4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, again with Naphthalen-1-amine coupling, product to diazo, and 4-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and ApplicationsGrey
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 4 2 2 2-3
2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt Preparation Products And Raw materials
Raw materialsSalicylic acid-->Benzidine-->1-Naphthol-4-sulfonic acid-->1-Naphthylamine
Tag:2-Hydroxy-5-[[4'-[[4-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt(6449-81-6) Related Product Information
CHLORAZOL BLACK LF DIRECT BLACK 51 Direct Black 56 Copper, diazotized 2-methoxy-4-nitrobenzenamine-4-[(8-hydroxy-6-sulfo-2-naphthalenyl)amino]benzoic acid coupling products complexes SIRIUS GREY G 2-[benzenesulfonyl-(3-methylphenyl)amino]-N-(2-methoxy-5-methyl-phenyl)acetamide Benzoic acid, 5-[[4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt trisodium 5-[[4-[[7-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-1-naphthyl]azo]salicylate Direct Black 38