An autoantibody is an antibody (a type of protein) produced by the immune system that is directed against one or more of the individual's own proteins. Many autoimmune diseases (notably lupus erythematosus) are caused by such autoantibodies.
Perfluorooctanoic acid (PFOA), also known as C8 and perfluorooctanoate, is a synthetic perfluorinated carboxylic acid and fluorosurfactant.FOA has widespread applications. In 1976, PFOA was reported as a water and oil repellent in fabrics and leather and in the production of floor waxes and waxed papers ; however, it is believed that paper is no longer treated with perfluorinated compounds, but with fluorotelomers with less than 0.1% PFOA.
Cyclopentane is a highly flammable alicyclic hydrocarbon with chemical formula C 5 H 10 and CAS number 287-92-3, consisting of a ring of five carbon atoms each bonded with two hydrogen atoms above and below the plane. It occurs as a colorless liquid with a petrol-like odor.Its melting point is â94 Â°C and its boiling point is 49 Â°C. Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms.The typical structure of cyclopentane is the envelope conformation. It is formed by cracking cyclohexane in the presence of alumina at a high temperature and pressure.t occurs as a colorless liquid with a petrol-like odor. Its melting point is â94 Â°C and its boiling point is 49 Â°C. Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms.