Direct Dyes Direct Brown 44, Direct Brown Nb, Direct Brown SL

Product Description

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.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	4	5	2	2		2
AATCC	3-4	4	2	1-2		2-3

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