Name:C.I.Direct Brown 44,C.I.35005

Molecular Structure: Multi-azo class
 
C.I.Direct Brown 44,C.I.35005,CAS 6252-62-6,758.7,C30H24N12Na2O6S2,Direct Brown NB,Direct Brown SL,Direct Brown 3G

Molecular Formula:C30H24N12Na2O6S2

Molecular Weight: 758.7

CAS Registry Number:6252-62-6

Manufacturing Methods :2 moles of nitrous acid treatment with 3 moles of  Benzene-1,3-diamine dihydrochloride (This product may be based on the disazo dye mixture as the main ingredient, and commercial dyes are usually composed by a dihydrochloride). And its product   (C.I. Basic Brown 1, C.I. 21000) as coupling component and diazotized 4-Aminobenzenesulfonic acid (2 mol) coupling
 
Apply to the cellulose fibre paper printing and dyeing and color.
 

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