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
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
- C.I.Direct Black 40:C.I.31760
- Direct Black 40
- CAS:
- 6449-81-6
- MF:
- C39H24N6Na2O7S
- MW:
- 766.6884
- Mol File:
- 6449-81-6.mol
More
Less
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 System
- C.I. Direct Black 40 (6449-81-6)
More
Less
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
Preparation
4-(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 Applications
Grey
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 4 | 2 | 2 | 2-3 |
More
Less
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