Linked from
The 21 pages that link to Hydrogen cyanide, each with the reason it gives.
Carl Wilhelm ScheeleRelated: Scheele discovered this compound in 1782 while studying Prussian blue.
AcrylonitrileRelated: It is a coproduct of propylene ammoxidation and can affect process economics.
AmygdalinRelated: Enzymatic degradation of amygdalin can produce this toxin.
Sodium cyanideRelated: Acidifying cyanide salts can release this dangerous gas.
2I/BorisovRelated: Its detection helped characterize the chemical inventory released by Borisov.