Gronerium compound 3983 was a hypergolic monopropellant. This explosive 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 deteoriation of performance.In 2367, this explosive was stored on aboard the Federation starship USS Enterprise-D.
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 USS Enterprise-D and an alien ship from the Tyken's Rift. (TNG: "Night Terrors")