C.I. Direct Brown 150

Preparation

3,5-Diamino-4-methylbenzenesulfonic acid (2 Moore) double nitriding, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid (1 Moore) and Benzene-1,3-diamine (1 Moore) coupled, get structure not certain how azo dye.

Properties and Applications

red light brown.

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