Names | |
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Preferred IUPAC name
Phenyloxirane | |
Other names
Epoxystyrene; Styryl oxide; Phenylethylene oxide
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Identifiers | |
3D model (JSmol)
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108582 | |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.002.252 |
EC Number |
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50213 | |
KEGG | |
PubChem CID
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RTECS number |
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UNII | |
UN number | 2810 3082 |
CompTox Dashboard (EPA)
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Properties | |
C8H8O | |
Molar mass | 120.151 g·mol−1 |
Appearance | Colorless to light yellow liquid |
Density | 1.052 g/mL |
Melting point | −37 °C (−35 °F; 236 K) |
Boiling point | 194 °C (381 °F; 467 K) |
Hazards | |
GHS labelling: | |
Danger | |
H312, H319, H350 | |
P201, P202, P264, P280, P281, P302+P352, P305+P351+P338, P308+P313, P312, P322, P337+P313, P363, P405, P501 | |
Safety data sheet (SDS) | Oxford University MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Styrene oxide is an epoxide derived from styrene. It can be prepared by epoxidation of styrene with peroxybenzoic acid, in the Prilezhaev reaction:[1]
Styrene oxide is slightly soluble in water. A trace amount of acid in water causes hydrolysis to racemic phenylethyleneglycol via a benzylic cation. If the amount of water is not sufficient, acid-catalyzed isomerization for phenylacetaldehyde will occur.[2]
Styrene oxide in the body is metabolized to mandelic acid, phenylglyoxylic acid, benzoic acid and hippuric acid.
Hydrogenation of styrene oxide affords phenethyl alcohol.[3]