  The electrical conductivity and Raman spectroscopy measurements have been
performed on MoS$_2$ at high pressures up to 90 GPa and variable temperatures
down to 5 K. We find that the temperature dependence of the resistance in a
metallic 2H$_a$ phase has an anomaly (a hump) which shifts with pressure to
higher temperature. Concomitantly, a new Raman phonon mode appears in the
metallic state suggesting that the electrical resistance anomaly may be related
to a structural transformation. We suggest that this anomalous behavior is due
to a charge density wave state, the presence of which is indicative for a
possibility for an emergence of superconductivity at higher pressures.
