Sudan yellow - is the organic compound N,N-diethyl-p-(phenylazo)aniline. It is an azo dye, which has the appearance of a reddish yellow powder.
S 2736 (OTTO) Sudan yellow Cas 2481-94-9 - used to color the hydrocarbon solvents , oils, fats and waxes. Pyrotechnics it allows to get the yellow smoke. S 2736 (OTTO) Sudan yellow Cas 2481-94-9 - used for oil, wax, & fat dyeing.