描述
P-methylstyrene, also known as 4-vinyltoluene or 1-ethenyl-4-methylbenzene, is a member of the class of compounds known as styrenes. Styrenes are organic compounds containing an ethenylbenzene moiety. P-methylstyrene can be found in guava, which makes P-methylstyrene a potential biomarker for the consumption of this food product. α-Methylstyrene (AMS) is a chemical intermediate used in the manufacture of plasticizers, resins and polymers. It is a co-product formed in a variation of the cumene process. The homopolymer obtained from this monomer, poly(α-methylstyrene), is unstable, being characterized by a low ceiling temperature .