Ramiprilat-d4 hydrochloride is deuterated labeled Ramiprilat (HY-A0115). Ramiprilat (HOE 498 diacid), an active metabolite of Ramipril, is a potent and orally active angiotensin converting enzyme (ACE) inhibitor with a Ki value of 7 pM. Ramiprilat can be used for high blood pressure and heart failure research[1].