STAMBP and melanoma: Of 141 total drugs tested in this study, drugs H4 (N-hydroxy-3-C(3-(hydroxyamino)-3-oxo-1-propen-1-yl)-benzamide; CBHA) and K8 (4-((hydroxyamino)carbonyl)-N-(2-hydroxyethyl)-N-phenyl-benzeneacetamide; HPOB) were found to inhibit α-melanocyte-stimulating hormone (α-MSH)-induced melanogenesis in B16-F10 murine melanoma cells at 1.0 μM without significant cytotoxicity.