I194496 is an effective inhibitor of cystathionine gamma-lyase (CSE) with an IC50 value of 0.79 mM. It inhibits the growth of human TNBC cells by dual targeting the PI3K/Akt and Ras/Raf/ERK pathways. Additionally, I194496 suppresses the metastasis of human TNBC cells by downregulating the Anxa2/STAT3 and VEGF/FAK/Paxillin signaling pathways.