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APEX observations of the CO (3--2) and (2--1) transitions are used to derive a wind velocity of 9.51 $\\pm$ 0.02 km s$^{-1}$, a $^{12}$C/$^{13}$C ratio of 14 $^{+9}_{-4}$, and a mass-loss rate of a few $\\times$ 10$^{-8}$ M$_\\odot$ yr$^{-1}$. From published spectra, we estimate that the star has a metallicity of [Fe/H] = --0.27 $\\pm$ $\\sim$0.30 dex. 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