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540102

Sigma-Aldrich

(S)-(−)-Styrene oxide

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98%, optical purity ee: 98% (GC)

Synonym(s):

(S)-(−)-Phenyloxirane, (S)-Phenylethylene oxide

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About This Item

Empirical Formula (Hill Notation):
C8H8O
CAS Number:
20780-54-5
Molecular Weight:
120.15
Beilstein/REAXYS Number:
3587977
MDL number:
MFCD00064310
UNSPSC Code:
12352005
PubChem Substance ID:
24878441
NACRES:
NA.22

assay

98%

optical activity

[α]20/D −33°, neat

optical purity

ee: 98% (GC)

refractive index

n20/D 1.535 (lit.)

bp

192-194 °C (lit.)

density

1.051 g/mL at 25 °C (lit.)

SMILES string

C1O[C@H]1c2ccccc2

InChI

1S/C8H8O/c1-2-4-7(5-3-1)8-6-9-8/h1-5,8H,6H2/t8-/m1/s1

InChI key

AWMVMTVKBNGEAK-MRVPVSSYSA-N

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General description

Styrene oxide is an oxirane derivative, which is used as a monomer for the synthesis of polyesters with relatively high Tg values via ring-opening copolymerization. It can also be used as a useful intermediate in the preparation of levamisole, a nematocide and anticancer agent.

Application

(S)-(-)-Styrene oxide can undergo copolymerization with CO2 to form the corresponding polycarbonate in the presence of a cobalt-based catalyst system.

Caution

Product should be sampled and packaged in a glove bag under nitrogen.

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Aquatic Chronic 2 - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

174.2 °F - closed cup

flash_point_c

79 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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This study evaluates the technical feasibility of biofilm-based biotransformations at an industrial scale by theoretically designing a process employing membrane fiber modules as being used in the chemical industry and compares the respective process parameters to classical stirred-tank studies. To
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