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Effects of compounds 2b and 8b on various melanoma cell survival. The melanoma cancer cells (3,000 cells/well) were treated with increasing concentrations of 2b or 8b (0.5–25 μM) for 48 h. Cell viability was then analyzed by the MTT assay. Non-linear graphs are derived from triplicate values of two independent experiments and presented as Mean ± SD.
