Imipenem-d4 (N-Formimidoyl thienamycin-d4) is a deuterium labeled Imipenem (HY-B1369A). Imipenem is an antibiotic[1].
References
[1] Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216. DOI:10.1177/1060028018797110