Notes: Naftifine-d3 is intended for use as an internal standard for the quantification of naftifine (Item No. 19234) by GC- or LC-MS. Naftifine is an allylamine compound that blocks ergosterol biosynthesis in fungi by inhibiting squalene epoxidase (Ki = 1.1 µM for C. albicans epoxidase).{17902}