Chemical. CAS 78628-80-5. Formula C21H25N . HCl. MW 291.4 . 36.5. Synthetic. Terbinafine is an antifungal and antimycotic compound that is highly active against dermatophytes, mold, other basic fungi, and some strains of yeast. It is clinically used to treat nail and skin infections. Inhibits ergosterol synthesis, essential component of fungal cell membranes. Potent non-competitive inhibitor at the stage of squalene epoxidation IC50=30nM for C. albicans. Selective activator of the K2P channel TASK3 pEC50 = 6.2. Exhibits >10-fold selectivity for TASK3 over TREK2, TRESK, THIK1 and TASK2. Also inhibits TWIK1 pIC50 = 5.69. K2P channels might also be a target for ist antifungal activity. Shown to exhibit at higher concentrations anti-tumor and anti-angiogenic activity by inducing cell cycle arrest, and to display interesting anti-inflammatory and free radical scavenging activities.