N-(2,4-diamino-5-(4-oxocyclohexa-2,5-dienylideneamino)phenyl)acetamide

N-(2,4-Diamino-5-(4-oxocyclohexa-2,5-dienylideneamino)phenyl)acetamide?and sodium polysulphide?aqueous solution return in 110 ℃ heating 30 hours, and then will be in dilute sodium hydroxide solution segregating the product oxidation, add salt precipitation, and finally with dilute hydrochloric acid treatment to improve solubility, and sodium?carbonate neutralization. This Indophenol?is by 2, 4 – aminoacetanilide and 4-Nitrosophenol condensation and have to (BIOS 983113-116).

purple. In the sodium sulfide solution solubility is good, for the red light grey.

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