cas registry number carboxylic acid cardiac arrest cellular respiration chemical formula cyanate cyanide cyanide poisoning cytochrome c oxidase einecs number gilding gold mining hydrogen cyanide hydrogen peroxide hydrolysis inorganic compound insect ion jonestown lactic acidosis list of r-phrases list of s-phrases melting point molar mass nazi party nitrile organic synthesis oxidative phosphorylation oxygen sodium cyanide solubility sugar von richter reaction