Cilazapril (monohydrate) (Standard) is the analytical standard of Cilazapril monohydrate (HY-A0043A). This product is intended for research and analytical applications. Cilazapril monohydrate is an orally active prodrug of the angiotensin-converting enzyme (ACE) inhibitor Cilazaprilat (HY-A0113). Cilazapril monohydrate reduces plasma ACE activity. Cilazapril monohydrate can be used in the research of hypertension (including essential and renal hypertension) and congestive heart failure[1][2][3][4][5].