Gronerium compound 3983
Gronerium compound 3983 was a hypergolic monopropellant. This fuel was used in ullage thruster devices and emergency jettison thrusters. This propellant has an extremely fast ignition rate. This propellant has a relatively low specific impulse (450 isp) and a shelf life in excess of ten standard years without a significant deterioration of performance. In 2367, this fuel was stored on aboard the Federation starship .
 
In that year, Gronerium compound 3983 was on a list of explosives that Lieutenant Commander Data and Counselor Deanna Troi searched through in an attempt to find one that could produce enough energy to release the  and an alien ship from the Tyken's Rift. (, okudagram)
Chemical compounds
Explosives