Tannerite's oxidizer, containing AN and AP, are both easily identified in airports because they contain ammonium which contains nitrogen. Alkanes like butane,

Tannerite's oxidizer, containing AN and AP, are both easily identified in airports because they contain ammonium which contains nitrogen. Alkanes like butane, propane, gasoline, and other naptha-like products would also be pretty bad on an airplane too because they could incapacitate people and create a catastrophic explosion if quickly dispersed at a high enough concentration and ignited. It would take probably a kilo or more and lots of energy to vaporize it bring down a plane from a vapor explosion.