2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt
2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt Basic information
- Product Name:
- 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt
- Synonyms:
-
- 2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt
- C.I.Acid Red 22:C.I.14940
- CAS:
- 5864-85-7
- MF:
- C18H17N2NaO8S2
- MW:
- 476.45
- EINECS:
- 611-729-4
- Mol File:
- 5864-85-7.mol
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2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt Usage And Synthesis
Preparation
2-Amino-4-methylanisole diazo, and 1-Naphthol-3,7-disulfonic acid?coupling
Properties and Applications
red. Soluble in water for product red, and adequate soluble in alcohol in red. The strong sulfuric acid for purple, diluted red for quality. In aqueous solution to join strong hydrochloric acid for product red; Add sodium hydroxide into a brown.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 4 | 3 | 2-3 | 1 | 2-3 | ||