tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)
- CAS NO.：16143-79-6
- Empirical Formula: C32H16Cu2N6O16S4.4Na
- Molecular Weight: 1087.81
- EINECS: 2402981
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
![tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-) Structural](https://img.chemicalbook.in/CAS/20180808/GIF/16143-79-6.gif)
What is tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)?
The Uses of tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)
Direct Blue 76 is a cotton polyester dye. Direct Blue 76 is an azo dye on cellophane film.
Preparation
3,3′-Dimethoxylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid (2 Moore) coupling, and then into copper complex.
Properties and Applications
green light blue
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 4-5 | 5 | 3 | 3 | ||
| AATCC | 4 | 4 | 5-6 | 3 | 2 | ||
Properties of tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)
| storage temp. | Hygroscopic, -20°C Freezer, Under inert atmosphere |
| solubility | DMSO (Slightly, Heated, Sonicated), Methanol (Very Slightly), Water (Slightly) |
| form | Solid |
| color | Dark Purple to Dark Brown |
| Stability: | Hygroscopic |
| EPA Substance Registry System | C.I. Direct Blue 76, tetrasodium salt (16143-79-6) |
Safety information for tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)
Computed Descriptors for tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-)
tetrasodium [mu-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-) manufacturer
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