Toluene is a clear, sweet smelling liquid mostly derived from crude oil. It is commonly used as component of petrol, and is also found in solvent, paint thinner, industrial feedstock, lacquers, adhesives, rubber and cleansing agents. Toluene has been identified as carcinogenic by the International Agency for Research on Cancer (IARC). It is highly flammable, irritating to skin, damaging to lungs if consumed, and may cause drowsiness, dizziness, or severe neurological harm if inhaled. It is also associated with the possible risk of harming an unborn baby and may cause serious damage to human health by prolonged exposure.