Manufacturer Good Price Alpha Methyl Styrene CAS 98-83-9

short description:

2-Phenyl-1-propene, also known as Alpha Methyl Styrene (abbreviated as a-MS or AMS) or phenylisopropene, is a by-product of the production of phenol and acetone by the cumene method, generally a by-product of phenol per ton 0.045t α-MS.Alpha Methyl Styren is a colorless liquid with a pungent odor. The molecule contains a benzene ring and an alkenyl substituent on the benzene ring.Alpha Methyl Styren is prone to polymerization when heated. Alpha Methyl Styren can be used in the production of coatings, plasticizers, and as a solvent in organic.

Alpha Methyl Styrene is a colorless liquid. Insoluble in water and less dense than water. Flash point 115°F. May be mildly toxic by ingestion, inhalation and skin absorption. Vapors may be narcotic by inhalation. Used as a solvent and to make other chemicals.

CAS: 98-83-9

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Applications of AMS

Alpha Methyl Styrene can be used as a monomer for polymers such as toluene-butadiene rubber and high temperature plastics. It can also be used to prepare coatings, hot melt adhesives, plasticizers and synthetic musk. In Japan, 90% of α-methylstyrene is used as a modifier for ABS resin, and the rest is used as a solvent and raw material for organic synthesis.

1.Intermediate for ABS plastics, Styrene - Butadiene rubber, Polystyrene, Styrene - Acrylonitrile Resins, Perfumery, Polyalphamethyl Styrene, Polyester resins.
2.Polymerization monomer, especially forpolyesters.
3.α-Methylstyrene is not a styrenic monomer in the strict sense. The methyl substitution on the side chain, rather than the aromatic ring, moderates its reactivity in polymerization. It is used as a specialty monomer in ABS resins, coatings, polyester resins, and hot-melt adhesives. As a copolymer in ABS and polystyrene, it increases the heat-distortion resistance of the product. In coatings and resins, it moderates reaction rates and improves clarity.


Specification of AMS




Colorless transparent liquid



Color (Pt-Co)

≤10 APHA



Polymer (ppm)


TBC, mg/kg


Packing of AMS

Logistics transportation1
Logistics transportation2


Storage should be at cool, dry and ventilate.


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