| Identification | Back Directory | [Name]
5-Amino-3-[[4'-[[6-amino-1-hydroxy-5-[(4-nitro-2-sulfophenyl)azo]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt | [CAS]
7273-59-8 | [Synonyms]
C.I.30205
Direct Blue 43
C.I.Direct Blue 43
C.I.Direct Blue 43:C.I.30205
5-Amino-3-[[4'-[[6-amino-1-hydroxy-5-[(4-nitro-2-sulfophenyl)azo]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt
2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((6-amino-1-hydroxy-5-((4-nitro-2-sulfophenyl)azo)-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, tetrasodium salt | [Molecular Formula]
C38H23N9Na4O16S4 | [MOL File]
7273-59-8.mol | [Molecular Weight]
1081.86 |
| Hazard Information | Back Directory | [Preparation]
2-Amino-5-nitrobenzenesulfonic acid diazo, in acid conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, 4-(4-Aminophenyl)benzenamine?double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and then in alkaline conditions and formation of accidentally coupled nitrogen compounds. | [Properties and Applications]
dark red light blue to navy blue. Soluble in water for the navy, slightly soluble in alcohol. The strong sulfuric acid for blue, for purple diluted. The dye solution to join strong hydrochloric acid for deep purple; Add thick sodium hydroxide solution for deep purple.
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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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3-4
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5
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2
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1-2
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2
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