Pygas (CAS: 68477-58-7) is rich in Benzene, Toluene and Xylene (BTX). Benzene is a valuable molecule because it used to produce a number of important chemical intermediates for industrial use. Pygas is produced by Dow’s hydrocarbon crackers and is a mixture of hydrocarbon materials of various molecular weights. It has high aromatics content and can be distilled to separate out various BTX fractions for use in other manufacturing processes.