| Identification | Back Directory | [Name]
trisodium 4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-2,2'-disulphonate | [CAS]
6360-43-6 | [Synonyms]
C.I.31860
Direct Brown 93
C.I.Direct Brown 93
Corium Chrome Brown MRG
C.I.Direct Brown 93:C.I.31860
trisodium 4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-2,2'-disulphonate
4-[[7-[(2,4-Diaminophenyl)azo]-1-hydroxy-3-sulfo-2-naphtyl]azo]-4'-[(4-hydroxyphenyl)azo]-1,1'-biphenyl-2,2'-disulfonic acid trisodium salt
4-[[7-[(2,4-Diaminophenyl)azo]-1-hydroxy-3-sulfonaphthalen-2-yl]azo]-4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-2,2'-disulfonic acid trisodium salt | [EINECS(EC#)]
228-827-4 | [Molecular Formula]
C34H23N8Na3O11S3 | [MOL File]
6360-43-6.mol | [Molecular Weight]
884.758 |
| Hazard Information | Back Directory | [Preparation]
2,2′-Disulfo-4,4,diaminobibenzene double nitriding, first with phenol, and then in three alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, product to diazo, and Benzene-1,3-diamine coupling. | [Properties and Applications]
red light brown. Soluble in water for brown. The strong sulfuric acid in light color for palm red, red light brown after diluted precipitation. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add thick sodium hydroxide solution is palm red light. |
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