Avibactam Descarbonyl is used in the investigation of the biochemical and biophysical interaction of avibactam with representatives from all metallo-β-lactamases (MBLs) subfamilies. Avibactam Descarbonyl is an Avibactam (A794850) Impurity. Avibactam (NXL104) is a novel β-lactamase inhibitor with a non-lactam structural scaffold.