Chemical Classification of Nearby Active Galaxies

We present an unbiased lambda=3 mm survey done with the TRAM 30 telescope towards the central parts of eight galaxies considered as archetypes of nearby starbursts, galaxies with an active galactic nucleus (AGN) and ultra-luminous infrared galaxies (ULTRGs). The spatial resolution range from similar to 200 pc to similar to 1.6 kpc, depending on the galaxy. We compare the abundances of thirty-seven species among the sample, and highlight the molecules that characterise the gas in each of them. These results can be very useful to prepare future interferometric observations of active galaxies.