Tetramethylammonium ion has limited toxicity of dermal exposure, but fatal effects can be introduced by pre-treatment with hydroxide ion.

2-methyl-3,5,6-trihydroxyanthraquinone

RCM-1 is an inhibitor of FOXM1. RCM-1 inhibits cellular proliferation via the increasing duration of cell cycle and mitosis in human and mouse cancer cell lines in vitro. RCM-1 inhibits colony formation of cancer cells in vitro in a dose-dependent manner. RCM-1 inhibits the migration of cancer cells in vitro in a dose-dependent manner.