Divalent triceron was a powerful and unstable explosive. As of 2336, it was illegal within the United Federation of Planets. Traces of divalent triceron were found in the remains of a shuttlecraft that had been piloted by Starfleet Intelligence agent Laura Burke and discovered in an asteroid field, leading investigators to conclude the Asfar Qatala had planted a bomb aboard. (TLE novel: Well of Souls)