APE-IN-1 (5-500 nM; 24 hours) does not change cell viability in L929 normal fibroblasts at different concentrations [1]. Cell Viability Assay Cell Line: L929 cells Concentration: 5, 10, 50, 100 and 500 mM Incubation Time: 24 hours Result: Does not affected L929 cell viability, even at the higher doses.