Steroid sulfatase-IN-2 is an active inhibitor of steroid sulfatase (STS), demonstrating an IC50 value of 109.5 nM. Its potential application lies in hormone-dependent cancer research, specifically estrogen-dependent breast and endometrial cancer [1].

Steroid sulfatase-IN-2 (compound 1h, 0.001-10 μM, 1 h) inhibits STS in the lysate of JEG-3 cells, with an IC 50 value of 109.5 nM [1]. Steroid sulfatase-IN-2 (1-1 μM, 20 h) inhibits STS in a whole-cell assay against JEG-3 cells, with an IC 50 value of 13.6 nM [1]. Steroid sulfatase-IN-2 (0.01-100 μM, 5 days) shows dose-dependent antiproliferative activity against T-47D estrogen-dependent breast cancer cells [1]. Cell Viability Assay [1] Cell Line: T-47D cells Concentration: 0.01-100 μM Incubation Time: 5 days Result: Inhibited cell proliferation with an IC 50 value of 5.78 μM.