HDAC-IN-42 (compound 14f) is a highly potent and selective inhibitor of histone deacetylase (HDAC) enzymes, with IC50 values of 0.19 μM for HDAC1 and 4.98 μM for HDAC6. It exhibits remarkable anticancer properties and inhibits cell proliferation. Additionally, HDAC-IN-42 induces apoptosis and causes cell cycle arrest specifically at the G2/M phase [1].

HDAC-IN-42 (compound 14f) shows anti-proliferative activity with C 50 s of 9.56, 13.32, 10.46, 6.91 μM for MCF-7, HCT-116, HepG2, Hela cells, respectively [1]. HDAC-IN-42 (1, 5, 10 μM; 24 h) reduces the colony formation and increases the expression of histone H3 and α-tubulin in HeLa cells [1]. HDAC-IN-42 (1, 5, 10 μM; 48 h) induces apoptosis and cell cycle arrest at G2/M phase [1].