| α-Methylstyrene[1] | |
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Isopropenylbenzene |
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Other names
α-Methylstyrene; 2-Phenyl-1-propene; 1-Methyl-1-phenylethylene; 2-Phenylpropene; (1-Methylethenyl)benzene; beta-Phenylpropene; 2-Phenylpropylene; beta-Phenylpropylene; alpha-Methylstyrol; 1-Phenyl-1-methylethylene; 2-Phenyl-2-propene |
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| Identifiers | |
| Abbreviations | AMS |
| CAS number | 98-83-9 |
| PubChem | 7407 |
| ChemSpider | 7129 |
| KEGG | C14395 |
| Jmol-3D images | Image 1 Image 2 |
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| Properties | |
| Molecular formula | C9H10 |
| Molar mass | 118.18 g mol−1 |
| Appearance | Colorless liquid |
| Density | 0.91 g/cm3 |
| Melting point |
-24 °C, 249 K, -11 °F |
| Boiling point |
165-169 °C, 438-442 K, 329-336 °F |
| Solubility in water | Insoluble |
| Hazards | |
| NFPA 704 |
0
3
0
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| Flash point | 45 °C |
| LD50 | Oral rat: 4900 mg/kg |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
α-Methylstyrene (AMS) is a chemical intermediate used in the manufacture of plasticizers, resins and polymers.[2] 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.