| Identification | Back Directory | [Name]
1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-hydroxy-, disodium salt | [CAS]
6428-99-5 | [Synonyms]
Direct Blue 50
C.I.Direct Blue 50:C.I.24205
1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-hydroxy-, disodium salt | [EINECS(EC#)]
613-569-0 | [Molecular Formula]
C34H27N4NaO10S2 | [MOL File]
6428-99-5.mol | [Molecular Weight]
738.72 |
| Hazard Information | Back Directory | [Preparation]
3,3′-Dimethoxylbenzidine double nitriding, and 5-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled. | [Properties and Applications]
blue. Soluble in water for red light purple, soluble in ethanol for purple. The strong sulfuric acid for blue, purple for red after diluted. The dye solution to join strong hydrochloric acid for dark red light purple, accompanied by precipitation; Add thick sodium hydroxide solution for red light purple.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
4-5
|
1-2
|
1-2
|
2
|
|
|
|
|
|
|