EMoCA: Exploring Molecular Complexity with ALMA

One of the key sites to search for complex organic molecules in the interstellar medium has turned out to be the hot core Sgr B2(N). We present the project EMoCA, a spectral line survey conducted toward this source with ALMA. We aim at deciphering the molecular content of Sgr B2(N) in order to test predictions of state-of-the-art astrochemical numerical simulations and improve our understanding of interstellar chemistry. An initial result of EMoCA is the first detection in space of a branched alkyl molecule. This detection establishes a further link between interstellar chemistry and meteorites and bodes well for the presence of amino acids in the interstellar medium.