  1ES1101-232 is a bright BL Lac of the High frequency peak class. We present
here the results of two BeppoSAX observations in which the source has shown a
variation of about 30% in flux with a corresponding spectral variability. We
interpret the overall spectral energy distribution in terms of an homogeneous
SSC model and, by using also the TeV upper limit from a short Mark 6 pointing,
derive constraints on the physical parameters of the source, in particular on
the magnetic field strength. The overall Spectral Energy Distribution makes
1ES1101-232 a very promising candidate for TeV detection.
