chlorobenzene: a colorless volatile flammable liquid with an almond odor that is made from chlorine and benzene; used as a solvent and in the production of phenol and DDT and other organic compounds
substance: the real physical matter of which a person or thing consists
levant cotton: Old World annual having heart-shaped leaves and large seeds with short greyish lint removed with difficulty; considered an ancestor of modern short-staple cottons