The complexity of Orion: an ALMA view - II. gGg′-ethylene glycol and acetic acid C. Favre, L. Pagani, P. F. Goldsmith, E. A. Bergin, M. Carvajal, I. Kleiner, G. Melnick and R. Snell A&A, 604 (2017) L2 Published online: 31 July 2017 DOI: 10.1051/0004-6361/201731327