1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt
- Product Name
- 1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt
- CAS No.
- 6449-77-0
- Chemical Name
- 1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt
- Synonyms
- Direct Black 90;C.I.Direct Black 90:C.I.21530;1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt
- CBNumber
- CB54748107
- Molecular Formula
- C22H17N7Na2O7S2
- Formula Weight
- 601.52262
- MOL File
- 6449-77-0.mol
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1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt Chemical Properties,Usage,Production
Preparation
2-(4-Aminophenylamino)-2-oxoacetic acid?diazo, and Benzene-1,3-diamine coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis of the product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid coupling.
Properties and Applications
black. Moderate soluble in water for dark purple, soluble in ethanol. In the thick of sulfur acid for green light blue, diluted is shallow brown. The dye solution to join strong hydrochloric acid for red sauce, precipitation; Add thick sodium hydroxide solution for purple.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| AATCC | 5 | 5 | 3 | 3 | 4 | ||
1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt Preparation Products And Raw materials
Raw materials
Preparation Products
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1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt Suppliers
6449-77-0, 1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium saltRelated Search:
Direct black 77 (C.I. 35860)
5-Amino-3-[[4'-[[4-[(8-amino-1-hydroxy-3,6-disulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt
DIRECT BLACK 80
Direct Black 76
DIRECT BLACK 9
disodium 4-amino-3-[(4-aminophenyl)azo]-6-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-5-hydroxynaphthalene-1-sulphonate
2-Naphthalenesulfonic acid, 6-amino-3-[[4'-[(4-amino-6-sulfo-1-naphthalenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt
Direct black 75 (C.I. 35870)
C.I. Direct Black 87