Thiosulfonated sulfurized 4-[(2,4-dinitrophenyl)amino]phenol

purplish blue to red light navy blue. Soluble in water. In concentrated sulfuric acid to dark red light blue solution, dilution after precipitation; In the Sodium hydroxide solution for blue; In the Sodium sulfide solution for dark blue or olive.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
						Moderate	Severe
ISO	4	4	5	4		5	4-5
AATCC	4-5	3-4	4	4		4	4