ACID BROWN 75

Acid Brown 75 is used in the dyeing of wool, nylon, and other blend fabrics. The fastness of dyeing in all kinds of fabric is very good. It could also be used in leather coloration.

CI No 34905
CI Name Acid Brown 75
CAS No 8011-86-7
Purity 170% "Salt Free / RO"
End Use Leather
Wool
Polyamide Fiber
Molecular Weight 843.58
Synonyms Acid Brown B, Acid Brown ER, Leather Brown ER, Leather Brown ANR
Product Group Non Metal Complex Dyes
C.I.Acid Brown 75,C.I.34905,CAS 8011-86-7,843.58,C28H15N9Na2O16S2,Acid Brown B,Acid Brown BR,Acid Brown NR,Acid Brown XR

Molecular Formula:C28H15N9Na2O16S2

Molecular Weight: 843.58

CAS Registry Number: 8011-86-7

Manufacturing Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, in weak alkali conditions Coupled with resorcinol, 2-Amino-4,6-dinitrophenol diazo, in weak alkali conditions and the single accidentally nitrogen content coupling, its product again with diazo of 4-Nitrobenzenamine weak inorganic acid in the coupling.

Properties and Applications: dark red light brown. Apply to wool, polyamide fiber dyeing, also can be used for leather color.