| Identification | Back Directory | [Name]
OXAMINE BLUE 4R | [CAS]
2429-72-3 | [Synonyms]
C.I.23705
DIRECT BLUE 3
Erie violet 2b
OXAMINE BLUE 4R
Einecs 219-383-2
C.I.Direct Blue 3
C.I.Direct Blue 3:C.I.23705
Disodium 3-((4'-((6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-4-hydroxynaphthalene-1-sulphonate
disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate
3-[[4'-[(6-Amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt | [EINECS(EC#)]
219-383-2 | [Molecular Formula]
C34H28N5NaO8S2 | [MDL Number]
MFCD00059541 | [MOL File]
2429-72-3.mol | [Molecular Weight]
721.73 |
| Hazard Information | Back Directory | [Preparation]
3,3′-Dimethylbenzidine double nitriding, first in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and then and 4-Hydroxynaphthalene-1-sulfonic acid coupling. | [Properties and Applications]
dark red light blue. Soluble in water for violet black, slightly soluble in ethanol for red light purple. The strong sulfuric acid for green light blue, diluted red for purple, have precipitation; In nitric acid for dark purple, and then into a red light purple. Dye with strong hydrochloric acid solution for purple, have precipitation; Add thick sodium hydroxide solution for purplish red color, 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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4
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4
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1
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1-2
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2
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AATCC
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5
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2-3
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2
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3
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2
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