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111848

Sigma-Aldrich

trans-β-Methylstyrene

99%

Sinonimo/i:

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

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1 G
50,60 €
10 G
199,00 €

50,60 €

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1 G
50,60 €
10 G
199,00 €

About This Item

Formula condensata:
C6H5CH=CHCH3
Numero CAS:
873-66-5
Peso molecolare:
118.18
Beilstein:
1361672
Numero CE:
212-848-0
Numero MDL:
MFCD00009280
Codice UNSPSC:
12352100
ID PubChem:
24847044
NACRES:
NA.22

50,60 €

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Saggio

99%

contiene

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

Indice di rifrazione

n20/D 1.550 (lit.)

P. ebollizione

175 °C (lit.)

Densità

0.911 g/mL at 25 °C (lit.)

Gruppo funzionale

phenyl

Temperatura di conservazione

2-8°C

Stringa SMILE

C\C=C\c1ccccc1

InChI

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

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Categorie correlate

Descrizione generale

The product exhibits potential exothermic hazards at higher temperatures[1].

Applicazioni

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[2].
Trans-β-methylstyrene was used in the preparation of exo-chromans by the oxa analogue of the Povarov reaction[3].

Avvertenze

Danger

Indicazioni di pericolo

H226,H304,H315,H318,H334,H335

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

125.6 °F - closed cup

Punto d’infiammabilità (°C)

52 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
BCCL0604
MKCP6202
MKBZ1555V
MKBP3489V
MKBC3918

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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
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.
(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)

Domande

1–2 di 2 domande  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Utile?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Utile?

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