| Identification | Back Directory | [Name]
4-Amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-[(5-chloro-2-phenoxyphenyl)azo]naphthalene-2,7-disulfonic acid disodium salt | [CAS]
5850-33-9 | [Synonyms]
C.I.20435
Acid Blue 128
C.I.Acid Blue 128
Acilan Fast Green BBL
C.I.Acid Blue 128:C.I.20435
4-Amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-[(5-chloro-2-phenoxyphenyl)azo]naphthalene-2,7-disulfonic acid disodium salt
disodium,(3Z)-5-amino-3-[(5-chloro-2-phenoxyphenyl)hydrazinylidene]-6-[(2,5-dichlorophenyl)diazenyl]-4-oxonaphthalene-2,7-disulfonate | [Molecular Formula]
C28H18Cl3N5O8S2.2Na | [MOL File]
5850-33-9.mol | [Molecular Weight]
768.95 |
| Hazard Information | Back Directory | [Preparation]
2,5-Dichlorobenzenamine diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in acid conditions coupled, then and diazo of 5-Chloro-2-phenoxybenzenamine in alkaline conditions coupled. | [Properties and Applications]
dark green light blue. Soluble in water, slightly soluble in ethanol to blue. The strong sulfuric acid for dark blue-green, diluted to blue. Join strong hydrochloric acid in aqueous solution for green light blue; Add sodium hydroxide to blue.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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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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4-5
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3-4
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2-3
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3
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3-4
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2-3
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3-4
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3-4
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