  Context. The S235AB star forming region houses a massive young stellar object
which has recently been reported to exhibit possible evidence of jet rotation -
an illusive yet crucial component of disk aided star formation theories.
  Aims. To confirm the presence of a molecular counterpart to the jet and to
further study the molecular environment in in S235AB. Methods. We search for
velocity wings in the line emission of thermal SiO (J=2-1, v=0), a tracer of
shocked gas, which would indicate the presence of jet activity. Utilising other
lines detected in our survey we use the relative intensities of intra species
transitions, isotopes and hyperfine transitions to derive opacities,
temperatures, column densities and abundances of various molecular species in
S235AB.
  Results. The SiO (J=2-1, v=0) emission exhibits velocity wing of up to 75
km/s above and below the velocity of the star, indicating the presence of a
jet. The molecular environment describes an evolutionary stage resemblant of a
hot molecular core.
