Isotope-239 igniting agent is a fuel used for the rockets at the REPCONN test site in the quest Come Fly With Me. The item is marked as a quest item, and cannot be dropped. The rocket souvenirs sold at the Dino Bite gift shop in Novac contain the same agent inside them.
Behind the scenesEdit
The only nuclide with an atomic mass of 239 and a half life capable of lasting 200 years would be Plutonium-239, a nuclide that can be added to nuclear reactors to reduce the need for enriched Uranium.
PC Playstation 3 Xbox 360 The Isotope-239 located next to the dead pack brahmin, along with the other items near it, may fall through the map if touched and therefore become unobtainable. [verified]