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Merck

8.06086

α-Methylstyrene

(stabilised with 4-tert-butylpyrocatechol) for synthesis

Synonym(s):

α-Methylstyrene, 2-Phenyl-1-propene, Isopropenylbenzene

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About This Item

Linear Formula:
C6H5C(CH3)=CH2
CAS Number:
Molecular Weight:
118.18
UNSPSC Code:
12352005
EC Index Number:
202-705-0
NACRES:
NA.22
MDL number:
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Product Name

α-Methylstyrene, (stabilised with 4-tert-butylpyrocatechol) for synthesis

form

liquid

SMILES string

CC(=C)c1ccccc1

InChI

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

InChI key

XYLMUPLGERFSHI-UHFFFAOYSA-N

vapor pressure

2.9 hPa ( 20 °C)

assay

≥99.0% (GC)

autoignition temp.

445 °C

potency

4900 mg/kg LD50, oral (Rat)

expl. lim.

0.9-6.6 % (v/v)

pH

5-6 (500 g/L in H2O)

bp

164 °C/1013 hPa

mp

-23 °C

transition temp

flash point 40 °C (DIN 51758)

solubility

560 mg/L

density

0.91 g/cm3 at 20 °C

storage temp.

2-30°C

Quality Level

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.908 - 0.910
Identity (IR): passes test

signalword

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

114.8 °F - closed cup

flash_point_c

46 °C - closed cup


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