ML-SA1 (Mucolipin synthetic agonist 1) is an activator of TRPML channels. This compound also inhibits Dengue virus 2 (DENV2) and Zika virus (ZIKV) by promoting lysosomal acidification and protease activity. The IC50 values of this chemical against DENV2 RNA and ZIKV RNA are 8.93 μM and 52.99 μM, respectively. It induces autophagy. It can be used for the research of broad-spectrum antiviral.