c15h25n3o c15h25n3o the molecular formula c15h25n3o (molar mass: 263.38 g/mol, exact mass: 263.1998 u) may refer to: caproxamine lisdexamfetamine, brand name vyvanse this article is issued from wikipedia. the text is licensed under creative commons - attribution - sharealike. additional terms may apply for the media files.