Mooride polyronite 4

Mooride polyronite 4 is one of many explosive materials available to the crew of the USS Enterprise (NCC-1701-D) in 2367 when they were trapped in a Tyken's Rift.

According to the database, this material is a "slow-burning chemical explosive used for controlled pressure wave ignition of small-scale fusion reactions. Stored in inert liquid form, activated by laser detonator."