2,7-Naphthalenedisulfonic acid, 4,4'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[3-hydroxy-, sodium salt (1:4)
- CAS NO.：6661-30-9
- Empirical Formula: C32H21Cl2N4NaO14S4
- Molecular Weight: 907.66
- EINECS: 613-956-4
![2,7-Naphthalenedisulfonic acid, 4,4'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[3-hydroxy-, sodium salt (1:4) Structural](https://img.chemicalbook.in/CAS/20211123/GIF/6661-30-9.gif)
What is 2,7-Naphthalenedisulfonic acid, 4,4'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[3-hydroxy-, sodium salt (1:4)?
Preparation
4-(4-Amino-2-chlorophenyl)-3-chlorobenzenamine double nitriding, and 3-Hydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.
Properties and Applications
red. Soluble in water for orange red, in very low in alcohol for light pink solubility, insoluble in acetone and toluene. The strong sulfuric acid for quality in red, for orange red after diluted. In water solution to join strong hydrochloric acid for red; With sodium hydroxide for red orange brown.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 3-4 | 4 | 3-4 | 1 | 3-4 | ||
Safety information for 2,7-Naphthalenedisulfonic acid, 4,4'-[(2,2'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[3-hydroxy-, sodium salt (1:4)
New Products
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![2-Naphthalenesulfonic acid, 6-(acetylamino)-3-([1,1'-biphenyl]-2-ylazo)-4-hydroxy-, monosodium salt](https://img.chemicalbook.in/CAS/20200119/GIF/6369-42-2.gif)
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