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Direct Brown 167

Name:C.I.Direct Brown 167,C.I.22770

Molecular Structure: Double azo class

C.I.Direct Brown 167,C.I.22770,CAS 13194-82-6,871.72,C39H28N7Na3O11S3,Benzo Cuprol Brown 3GL

C.I.Direct Brown 167,C.I.22770,CAS 13194-82-6,871.72,C39H28N7Na3O11S3,Benzo Cuprol Brown 3GL

Molecular Formula:C39H28N7Na3O11S3

Molecular Weight: 871.72

CAS Registry Number:13194-82-6

Manufacturing Methods : 2-Amino-5-(4-amino-3-barboxyphenyl)benzoic acid double nitriding, first with 6-(4-Hydroxy-3-methyl-1H-pyrazol-1-yl)naphthalene-2-sulfonic acid coupling, and then and N-(2-methoxyphenyl)-3-oxobutanamide coupling.

Properties and Applications:  yellow light brown. Soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid in red orange for brown, with golden yellow diluted. The dye solution to join strong hydrochloric acid for yellow brown, have precipitation; With strong sodium hydroxide solution for yellow brown, a little precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
AATCC 3-4 5 6-7 4 5

List of Suppliers:

Benzo Cuprol Brown 3GL( Bayer Group )


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