| Identification | Back Directory | [Name]
5,5'-[3,3'-Dimethyl-1,1'-biphenyl-4,4'-diylbis(azo)]bis[6-aminonaphthalene-2-sulfonic acid sodium] salt | [CAS]
6406-01-5 | [Synonyms]
C.I.23560
Nsc242027
Direct Red 21
Hispamin red b
Benzopurpurine b
C.I.Direct Red 21
C.I.Direct Red 21:C.I.23560
C.I. Direct red 21, disodium salt
5,5'-[3,3'-Dimethyl-1,1'-biphenyl-4,4'-diylbis(azo)]bis[6-aminonaphthalene-2-sulfonic acid sodium] salt
2-Naphthalenesulfonic acid, 5,5'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[6-amino-, disodium salt
sodium,6-amino-5-[[4-[4-[(2-amino-6-sulfonaphthalen-1-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-2-sulfonic acid | [Molecular Formula]
C34H28N6NaO6S2+ | [MOL File]
6406-01-5.mol | [Molecular Weight]
703.742 |
| Hazard Information | Back Directory | [Preparation]
3,3′-Dimethylbenzidine double nitriding, and 6-Aminonaphthalene-2-sulfonic acid (2 Moore) coupled. | [Properties and Applications]
yellow light red. Moderate soluble in water for palm light orange, trace soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid for blue, Red sauce for shallow diluted. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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2
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4-5
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1
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1-2
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1-2
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