13682-73-0 Copper(I) potassium cyanide Cuprate(1-), bis(cyano-kappaC)-, potassium Cuprate(1-), dicyano-, potassium Cuprous potassium cyanide EINECS 237-192-2 Potassium copper(I) cyanide Potassium cuprocyanide Potassium cuprocyanide [UN1679] [Poison] Potassium dicyanocuprate Potassium dicyanocuprate(1-) UN1679