Name:C.I.Acid Brown 75,C.I.34905
Molecular Structure: trisazo class
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.
