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We analyze the molecular gas and dust associated with the infrared dark cloudSDC 341.232-0.268 in order to investigate the characteristics and parameters ofthe gas, determine the evolutionary status of four embedded EGO candidates andestablish possible infall or outflow gas motions. We based our study on$^{12}$CO(2-1), $^{13}$CO(2-1), and C$^{18}$O(2-1) data obtained with the APEXtelescope, molecular data of high density tracers from the MALT90 survey and IRimages from Spitzer, Herschel and ATLASGAL. The study reveals two clumps at -44km/s towards the IRDC, with densities of > 10$^4$ cm$^{-3}$ , typical of IRDCs,while high density tracers show H$_2$ densities > 10$^5$ . FIR images revealsthe presence of cold dust linked to the molecular clumps and EGOs. A comparisonof spectra of the optically thin and optically thick molecular lines towardsthe EGOs suggests the existence of infall and outflow motions.

Millimeter and far-IR study of the IRCD SDC 341.232-0.268