Copper(II) chloride is the chemical compound with the formula CuCl2. This is a yellow-brown solid which slowly absorbs moisture to form a blue-green dihydrate.
Mercury(II) chloride or mercuric chloride (formerly corrosive sublimate), is the chemical compound with the formula HgCl2. This white crystalline solid is a laboratory reagent.
Dichloromethane (DCM or methylene chloride) is the organic compound with the formula CH2Cl2. This colorless, volatile liquid with a moderately sweet aroma is widely used as a solvent.