| Identification | Back Directory | [Name]
disodium 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-m-tolyl]azo]-o-tolyl]azo]naphthalene-1,5-disulphonate | [CAS]
6739-48-6 | [Synonyms]
Erie Brown RLO
Direct Brown 32
C.I.Direct Brown 32
Benzo Orange Brown 3GR
Direct Orange Brown 3GR
Naphtamine Fast Brown GG
Chlorazol Orange Brown 2R
C.I.Direct Brown 32:C.I.34015
disodium 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-m-tolyl]azo]-o-tolyl]azo]naphthalene-1,5-disulphonate
3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)diazenyl]-3-methylphenyl]diazenyl]-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate
disodium,3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)diazenyl]-3-methylphenyl]diazenyl]-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate | [EINECS(EC#)]
229-799-6 | [Molecular Formula]
C30H26N9NaO8S2 | [MOL File]
6739-48-6.mol | [Molecular Weight]
727.7 |
| Hazard Information | Back Directory | [Preparation]
3-Aminonaphthalene-1,5-disulfonic acid diazo, and m-Toluidine coupling, again diazo, and O-Methylaniline coupling, its product to diazo, and 4-Nitrobenzene-1,3-diamine coupling. | [Properties and Applications]
orange brown. Soluble in water for yellow brown, soluble in soluble fiber element for orange, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for blue to red sauce, diluted becomes shallow, with brown precipitation; In nitric acid partly dissolved for blue purple. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution for orange brown.
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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
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5
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3
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1-2
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1-2
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AATCC
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3
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5
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3
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3
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4
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