C21H25NO4
{{DISPLAYTITLE:C21H25NO4}} The molecular formula C21H25NO4 (molar mass: 355.42 g/mol, exact mass: 355.1784 u) may refer to: Glaucine, an alkaloid LY-307,452 Nalmexone Tetrahydropalmatine, an alkaloid Yuanhunine Molecular formulas