In the short-term viability assay, CuET showed a dose-dependent killing effect on BRAF WT melanoma cell lines (SKMEL23, SKMEL113, WM1366) and BRAF WT PDSC lines (TÜMEL62-1, TÜMEL110, TÜMEL119, TÜMEL123-1, TÜMEL173, TÜMEL176). Here, BRAF is linked to melanoma.