<unk>  is an inorganic compound with the formula HgNH2Cl.  It consists of a zig-zag 1-dimensional polymer (HgNH2)n with chloride counterions. It arises from the reaction of ammonia and<unk>  chloride.  Addition of base converts it into "Millon's base," which has the formula [Hg2N]OH(H2O)x.  A variety of related amido and nitrido materials with chloride, bromide, and hydroxide are known.
Before the toxicity of mercury was appreciated,<unk> , known as "ammoniated mercury", was used as a topical antiseptic and disinfectant.
Mercuric amidochloride
Manganese dioxide
Cadmium sulfide
Cadmium oxide
Calcium arsenate
Cadmium chloride
Hexavalent chromium
Acetylene tetrabromide