Spectral energy distribution (solid line) obtained with X-Shooter (red) and XRT data (black), corrected for the rest-frame A_V and N_H respectively. We also included the radio detection (green) of Laskar et al. (2014). The dashed blue line represents the extinction uncorrected best-fit. Dashed lines indicate the position of the injection frequency (ν_i = 2 × 10¹² Hz) and the cooling frequency (ν_c ~ 2 × 10¹⁶ Hz) expected for a pure synchrotron model.