We are offering red lead.
Red lead is a bright red to orange, red powder which is used in making lead glass and red pigments; paint made with red lead is commonly used to protect iron and steel from rusting. Chemically, red lead is lead tetra oxide, pb3o4, a water-insoluble compound that is prepared by the oxidation of metallic lead or of litharge (lead monoxide). The commercial product sometimes contains litharge as an impurity.