1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt
1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Basic information
- Product Name:
- 1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt
- Synonyms:
-
- 1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt
- Acid Red 31
- C.I.Acid Red 31:C.I.16540
- CAS:
- 5850-50-0
- MF:
- C16H10N2Na2O8S2
- MW:
- 468.36874
- EINECS:
- 611-670-4
- Mol File:
- 5850-50-0.mol
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1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Usage And Synthesis
Preparation
2-Aminobenzenesulfonic acid diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid?coupling.
Properties and Applications
blue-ray red. Soluble in water for wine red, hardly soluble in alcohol. The strong sulfuric acid for dark purple, diluted red wine. In water solution to join strong hydrochloric acid for the red; Add sodium hydroxide into wine red to the deep red.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 2 | 3-4 | 2-3 | 1 | 3 | ||
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1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt(5850-50-0)Related Product Information
- hydrogen bis[1-[(5-(aminosulphonyl)-2-hydroxyphenyl)azo]2-naphtholato(2-)]chromate(1-)
- CHROMOTROPE 2R
- 4-Hydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt
- sodium 5-[2-[5-chloro-2-(4-methylphenyl)sulfonyl-phenyl]hydrazinyl]-6-imino-4-oxo-naphthalene-2-sulfonate
- Acid Red 30
- Acid Red 308
- C.I. Acid Red 316(8CI,9CI)
- ACID RED 299
- Acid Red 315