2-(4-(N-Butyl-N-cyanoethylamino)phenylazo)-6-nitrobenzothiazole 3-(Butyl(4-((6-nitro-2-benzothiazolyl)azo)phenyl)amino)propiononitrile 6-Nitro-2-(4-((2-cyanoethyl)butylamino)phenylazo)benzothiazole 67905-67-3 EINECS 267-684-2 Propanenitrile, 3-(butyl(4-((6-nitro-2-benzothiazolyl)azo)phenyl)amino)-