Acid Brown 85(CAS 77031-30-2/6473-02-5)

Acid Brown 85

Name:C.I.Acid Brown 85,C.I.34900

Molecular Structure: trisazo class

C.I.Acid Brown 85,C.I.34900,CAS 77031-30-2/6473-02-5,812.61,C28H18N10Na2O13S2,Acid Brown CT,Acid Red GRL,Brown MT

Molecular Formula:C₂₈H₁₈N₁₀Na₂O₁₃S₂

Molecular Weight: 812.61

CAS Registry Number: 77031-30-2/6473-02-5

Manufacturing Methods :   4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid diazo, Coupled with resorcinol, its products and 2 Moore’s diazo  4-Nitrobenzene-1,3-diamine coupling .

Properties and Applications: Dark brown. Apply to wool dyeing and leather color