5-[(2,3,6-Trichlorophenyl)[3-methyl-4-oxo-5-(sodiooxycarbonyl)-2,5-cyclohexadien-1-ylidene]methyl]-2-hydroxy-3-methylbenzoic acid sodium salt

Preparation

2,3,6-Trichlorobenzaldehyde (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) in sulfuric acid in the condensation,Nitrous oxide, the product was, isolated as the sodium salt.

Properties and Applications

brilliant blue (chromium). Soluble in water for yellow brown, soluble in ethanol for yellow brown. In concentrated sulfuric acid for hot magenta, dilution after light golden orange. Dye aqueous solution to join sodium hydroxide as purple.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	4	5	5	4	5	5	5
AATCC	4-5	3	4-5		5