D 2037 (OTTO) Dimethyl glyoxime, GR 99%+ Cas 95-45-4 - used in the analysis of palladium or nickel. D 2037 (OTTO) Dimethyl glyoxime, GR 99%+ Cas 95-45-4 - used to detect and quantify nickel, which forms the bright red complex nickel bis(dimethylglyoximate) (Ni(dmgH)2).