2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt
2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt Basic information
- Product Name:
- 2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt
- Synonyms:
-
- 2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt
- Acid Red 65
- C.I.Acid Red 65:C.I.24830
- CAS:
- 6459-71-8
- MF:
- C43H37N4NaO14S4
- MW:
- 985.01
- EINECS:
- 613-630-1
- Mol File:
- 6459-71-8.mol
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2,7-Naphthalenedisulfonic acid, 4,4'-[(phenylmethylene)bis[(2,5-dimethyl-4,1-phenylene)azo]]bis[3-hydroxy-, tetrasodium salt Usage And Synthesis
Preparation
4-((4-Amino-2,5-dimethylphenyl)(phenyl)methyl)-2,5-dimethylbenzenamine?double nitride, and 3-Hydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.
Properties and Applications
yellow light red. Soluble in water for wine, not soluble in alcohol. The strong sulfuric acid for blu-ray red, diluted into red. In water solution to join hydrochloric acid discoloration; Add sodium hydroxide solution into deep red.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 3 | 3-4 | 3 | 1 | 4-5 | ||