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111848

Sigma-Aldrich

trans-β-Methylstyrene

99%

Sinónimos:

trans-1-Phenyl-1-propene, trans-beta-Methylstyrene, trans-Propenylbenzene

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About This Item

Fórmula lineal:
C6H5CH=CHCH3
Número de CAS:
873-66-5
Peso molecular:
118.18
Beilstein/REAXYS Number:
1361672
EC Number:
212-848-0
MDL number:
MFCD00009280
UNSPSC Code:
12352100
PubChem Substance ID:
24847044
NACRES:
NA.22

assay

99%

contains

20 ppm 3,5-di-tert-butylcatechol as inhibitor

refractive index

n20/D 1.550 (lit.)

bp

175 °C (lit.)

density

0.911 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

C\C=C\c1ccccc1

InChI

1S/C9H10/c1-2-6-9-7-4-3-5-8-9/h2-8H,1H3/b6-2+

InChI key

QROGIFZRVHSFLM-QHHAFSJGSA-N

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General description

The product exhibits potential exothermic hazards at higher temperatures.

Application

Trans-β-methylstyrene was used in the epoxidation reaction of an oxidant solution with a solution of dichloromethane, where nickel is used as a catalyst and benzyltributylammonium bromide as a phase-transfer agent.
Trans-β-methylstyrene was used in the preparation of exo-chromans by the oxa analogue of the Povarov reaction.

signalword

Danger

Hazard Classifications

Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 3 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

125.6 °F - closed cup

flash_point_c

52 °C - closed cup

ppe

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

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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trans-Styrene-(β)-d ≥94 atom % D, ≥98% (CP), contains hydroquinone-d6 as stabilizer

Sigma-Aldrich

524468

trans-Styrene-(β)-d

4-Methylstyrene 96%, contains 3,5-di-tert-butylcatechol as inhibitor

Sigma-Aldrich

M80806

4-Methylstyrene

S Y Lin et al.
Journal of hazardous materials, 161(1), 330-335 (2008-05-20)
According to literature and our research, the styrene polymerization mechanism is identified by alpha-methylstyrene (AMS). This study investigated the basic exothermic behavior of styrene and its major derivatives, AMS, and trans-beta-methylstyrene (TBMS), by two calorimeters, differential scanning calorimetry (DSC) and
(Salen)nickel-Catalysed Epoxidations in the Homogeneous and Heterogeneous Phase: The Implications of Oxygen on the Efficiency and Product Selectivity.
Ferreira R, et al.
European Journal of Inorganic Chemistry, 2005(21), 4272-4279 (2005)
Rivka R R Taylor et al.
The Journal of organic chemistry, 78(4), 1404-1420 (2012-12-13)
An oxa analogue of the well-known Povarov reaction has been developed for the synthesis of 3,4-dihydrobenzopyrans (chromans). The reaction involves the formal inverse electron demand [4 + 2] cycloaddition reaction of in situ-generated cationic aryl 2-oxadiene oxocarbenium ions with alkenes.

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