Α-Methylstyrene
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| Names | |||
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| Preferred IUPAC name
(Prop-1-en-2-yl)benzene | |||
| Other names
2-Phenylpropene; 2-Phenylpropylene; 1-Methyl-1-phenylethylene; 1-Methyl-1-phenylethene; 1-Phenyl-1-methylethylene; 1-Phenyl-1-methylethene; (1-Methylethenyl)benzene; β-Phenylpropene; β-Phenylpropylene; α-Methylstyrol; α-Methylvinylbenzene; Isopropenylbenzene | |||
| Identifiers | |||
3D model (JSmol) |
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| Abbreviations | AMS | ||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.002.459 | ||
| EC Number |
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| KEGG | |||
PubChem CID |
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| RTECS number |
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| UNII | |||
| UN number | 2303 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| C9H10 | |||
| Molar mass | 118.179 g·mol−1 | ||
| Appearance | Colorless liquid | ||
| Density | 0.91 g/cm3 | ||
| Melting point | −24 °C (−11 °F; 249 K) | ||
| Boiling point | 165 to 169 °C (329 to 336 °F; 438 to 442 K) | ||
| Insoluble | |||
| Vapor pressure | 2 mmHg (20 °C) | ||
| −80.1·10−6 cm3/mol | |||
| Hazards | |||
| GHS labelling: | |||
| Warning | |||
| H226, H319, H335, H411 | |||
| P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P273, P280, P303+P361+P353, P304+P340, P305+P351+P338, P319, P337+P317, P370+P378, P391, P403+P233, P403+P235, P405, P501 | |||
| NFPA 704 (fire diamond) | |||
| Flash point | 45 °C (113 °F; 318 K) | ||
| Explosive limits | 1.9–6.1% | ||
| Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) |
4900 mg/kg (oral, rat) | ||
| NIOSH (US health exposure limits): | |||
PEL (Permissible) |
C 100 ppm (480 mg/m3) | ||
REL (Recommended) |
TWA 50 ppm (240 mg/m3) ST 100 ppm (485 mg/m3) | ||
IDLH (Immediate danger) |
700 ppm | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
α-Methylstyrene (AMS) is an organic compound with the formula C6H5C(CH3)=CH2. It is a colorless oil.