6416-57-5

ChEBI: Sudan Brown RR is a member of azobenzenes.

Naphthalen-1-amine diazotization, and Benzene-1,3-diamine coupling.

red orange and brown. Soluble in ethanol, acetone and benzene. In concentrated sulfuric acid to dark red light yellow to brown, after diluted solution for brown, precipitation, In concentrated sodium hydroxide solution insoluble. Dye alcohol solution to join concentrated hydrochloric acid is red. Used for oil, paraffin wax, printing ink, alcohol soluble paint color.

Standard	Light Fastness	Heat-resistant(℃)		water	Sodium Carbonate (5%)	Hydrochloric acid (5%)
		Melting point	Stable
ISO	General	155>160	>150	Insoluble	No change	No change