S 1877 (OTTO) Sodium diethyldithiocarbamate, GR 99%+ Cas 20624-25-3 - used in conjunction with ferrous ion to detect nitric oxide in brain, kidney, liver and other tissues. S 1877 (OTTO) Sodium diethyldithiocarbamate, GR 99%+ Cas 20624-25-3 - used as sensitive reagent for the determination of copper, rubber vulcanization accelerator and finds application in the determination of other metals such as zinc, cobalt, platinum and palladium.