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Key Documents

8.22098

Sigma-Aldrich

Methylstyrene

(mixture of 3- and 4-isomers) stabilised with 4-tert-butylpyrocatechol for synthesis

Synonym(s):

Methylstyrene, Vinyltoluene

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About This Item

Linear Formula:
3/4-(CH3)C6H4CH=CH2
CAS Number:
1319-73-9
Molecular Weight:
118.18
UNSPSC Code:
12352005
EC Index Number:
215-292-7
NACRES:
NA.22

vapor pressure

1.47 hPa ( 20 °C)

Quality Level

200

form

liquid

autoignition temp.

575 °C

potency

5000 mg/kg LD50, oral (Rat)

expl. lim.

1.1-5.2 % (v/v)

mp

-77 °C

transition temp

flash point 52 °C

density

0.893 g/cm3 at 25 °C

storage temp.

2-30°C

InChI

1S/C9H10/c1-3-9-6-4-8(2)5-7-9/h3-7H,1H2,2H3

InChI key

JLBJTVDPSNHSKJ-UHFFFAOYSA-N

Analysis Note

Assay 3-methyl styrol (GC, area%): 40.0 - 60.0 % (a/a)
Assay 4-methyl styrol (GC, area%): 40.0 - 60.0 % (a/a)
Sum isomers (GC): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.896 - 0.898
Identity (IR): passes test

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226 - H332

Hazard Classifications

Acute Tox. 4 Inhalation - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

125.6 °F

Flash Point(C)

52 °C

Certificates of Analysis (COA)

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