relebactam relebactam relebactam is a chemical compound used in combination with antibiotics to improve their efficacy. as a beta-lactamase inhibitor, it blocks the ability of bacteria to break down a beta-lactam antibiotic. in the united states, relebactam is approved for use in the combination imipenem/cilastatin/relebactam (recarbrio). relebactamclinical dataother namesmk-7655legal statuslegal status us: ℞-only identifiers iupac name octan-6-yl] hydrogen sulfate cas number1174018-99-5pubchem cid44129647drugbankdb12377chemspider31137585unii1oqf7tt3pfchemical and physical dataformulac12h20n4o6smolar mass348.37 g·mol−13d model (jsmol)interactive image smiles c1c(n2c1n(c2=o)os(=o)(=o)o)c(=o)nc3ccncc3 inchi inchi=1s/c12h20n4o6s/c17-11(14-8-3-5-13-6-4-8)10-2-1-9-7-15(10)12(18)16(9)22-23(19,20)21/h8-10,13h,1-7h2,(h,14,17)(h,19,20,21)/t9-,10+/m1/s1key:smobclhazxokdq-zjuuuordsa-n