Direct Black 34
Name:C.I.Direct Black 34,C.I.35075
Molecular Structure: Multi-azo class
C.I.Direct Black 34,C.I.35075,CAS 6473-08-1,915.87,C40H31N13Na2O7S2,Chrome Leather Black A
Molecular Formula:C40H31N13Na2O7S2
Molecular Weight: 915.87
CAS Registry Number:6473-08-1
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, again with Benzene-1,3-diamine coupling, N-(3-aminophenyl)acetamide (2 Moore) diazo, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, a neighborhood of light matches, a and Benzene-1,3-diamine coupling, and then hydrolyzed acylamino.
Properties and Applications: green and black.
List of Suppliers:
Chrome Leather Black A( Frado )