ANTHRA RED B

2-(4-Chloro-2-methylphenylthio)acetic acid?with Chlorosulfonic acid cyclization, oxidation. The intermediate is made by 3-Chlorotoluene Sulfuryl chloride route (BIOS 983, 34) or by 4-Chloro-2-methylbenzenamine?use disulphide method (FIAT 1313,2,296) and have to.

brilliant red light purple. Purple powder. Insoluble in water, soluble in xylene as the blue light red, weak yellow fluorescence. In concentrated sulfuric acid for brilliant green, dilution after red precipitation. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. Used for dyeing cotton fabric for brilliant red light purple. To cotton affinity is high, good levelness. Also can be used for cotton fabric of direct, resist and discharge printing, also can be used for silk and wool fabric dyeing and printing.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
						Fading	Stain
ISO	5	5	5	4	4	4	5
AATCC	4	5	5	3-4	4