The 2nd and minor metabolic pathway is made up of the reaction of cyanide with cystine to produce cysteine and β-thiocyanoalanine (Wood and Cooley 1955). Very first found in 1786 by Scheele, who extracted it from the dye Prussian blue – and immediately died from exposure for the vapours Fires: https://troytubbw.fireblogz.com/60921469/5-tips-about-potassium-cyanide-lethal-dose-mg-kg-you-can-use-today