A clear, colorless liquid compound with a strong, disagreeable odor, that is highly toxic and made by heating together carbon and sulfur. Carbon disulfide was discovered in 1796. It is used as a building block in organic chemistry as well as a solvent for rubber and other products. It was once used as a fumigant for houses, wood objects, and books; however, it is no longer recommended because it can soften paints, varnishes, plastics, rubbers, and tarnish metals.