4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]naphthalene-2,7-disulfonic acid disodium salt
- CAS NO.:6487-06-5
- Molecular Weight: 0
What is 4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]naphthalene-2,7-disulfonic acid disodium salt?
Preparation
4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, its product in alkaline conditions again with the diazo 4-(Phenyldiazenyl)benzenamine coupling.
Properties and Applications
dark blue light green. Soluble in water, slightly soluble in ethanol and acetone, hardly soluble in benzene. The strong sulfuric acid for blue-ray green, diluted for blue-ray still green. In an aqueous solution of concentrated sodium hydroxide solution was added to gray light blue.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3-4 | 4 | 4-5 | 4-5 |
Safety information for 4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]naphthalene-2,7-disulfonic acid disodium salt
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ACID GREEN 3
8-[[4-(Acetylamino)phenyl]amino]-5-cyclohexylamino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid sodium salt
Acid Green 28
Acid Green 40
Benzoic acid, 3-[[4-[(1,8-dihydroxy-4-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-2(or 6)-hydroxy-, disodium salt
disodium hydrogen bis[4-amino-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)
2,2'-[(9,10-Dihydro-5-hydroxy-9,10-dioxoanthracene-1,4-diyl)diimino]bis[5-methylbenzenesulfonic acid sodium] salt
[1,1'-Biphenyl]sulfonic acid, 4,4''-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis-, disodium salt
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