2 h sub 5 sub 2 h ch sub 2 ch sub 2 6 n c sub 4 h sub 9 sub 2 n c sub 4 h sub 9 sub 2 h ch sub 2 ch sub 2 str5 str6 h ch sub 2 ch sub 2 8 str7 str8 h ch sub 2 ch sub 2 9 nh sub 2 nh sub 2 ch sub 3 ch sub 2 ch sub 2 10 nh sub 2 n ch sub 3 sub 2 h ch sub 2 ch sub 2 11 nh sub 2 nh sub 2 h ch sub 2 ch sub 2 ch sub 2 __________________________________________________________________________ the organic white pigment represented by the general formula 1 is prepared in the following manner first 1 mole of a cyanuric halide such as cyanuric chloride is dispersed in ice water along with a small amount of a surface active agent and an aqueous solution containing 4 moles of ammonia or mono or di lower alkylamine is added drop by drop to the resulting dispersion maintained at 0 to 5 u00b0 c with stirring upon completion of the drop by drop addition the resulting mixture is heated up to a temperature of 40 to 50 u00b0 c and allowed to react for.