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  Overview: Alpha-methylstyrene (AMS) is an insoluble colorless liquid with an aromatic odor. AMS is obtained as a by-product in the manufacturing of cumene-phenol process. To obtain high purity AMS, it undergoes purification by continuous distillation at reduced pressure to remove phenol, cumene, and other impurities. It is widely used as a copolymer to synthesize different monomers such as benzene and acrylates. On the basis of purity, the global alpha-methylstyrene market has been bifurcated into <99% and >99%. The <99% segment held the largest market share in 2017 and is estimated to be the fastest-growing segment during the forecast period. This is attributed to the increasing usage of AMS in the production of heat-resistant acrylonitrile-butadiene-styrene (ABS). Moreover, it is the basic raw material of organic compounds used in the production of paint adhesives and pigments. Additionally, it is used as a plastic additive. Based on application, the global alpha-met