4-Dimethylsulphamido-2-amino-2'-nitrodiphenyl sulphide Metanilamide, N(sup 1),N(sup 1)-dimethyl-4-((o-nitrophenyl)thio)- N(sup 1),N(sup 1)-Dimethyl-4-((o-nitrophenyl)thio)metanilamide OY2220000