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T73601

Sigma-Aldrich

1,2,4-Trimethylbenzene

98%

Sinonimo/i:

Pseudocumene

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25 ML
CHF 32.90
500 ML
CHF 35.50
2 L
CHF 132.00

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Cambia visualizzazione
25 ML
CHF 32.90
500 ML
CHF 35.50
2 L
CHF 132.00

About This Item

Formula condensata:
C6H3(CH3)3
Numero CAS:
95-63-6
Peso molecolare:
120.19
Beilstein:
1903005
Numero CE:
202-436-9
Numero MDL:
MFCD00008527
Codice UNSPSC:
12352100
eCl@ss:
39011403
ID PubChem:
24900445
NACRES:
NA.22

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Densità del vapore

4.1 (vs air)

Tensione di vapore

4.5 mmHg ( 37.7 °C)

Saggio

98%

Temp. autoaccensione

959 °F

Limite di esplosione

6.4 %

Indice di rifrazione

n20/D 1.504 (lit.)

P. ebollizione

168 °C (lit.)

Punto di fusione

−44 °C (lit.)

Densità

0.876 g/mL at 20 °C (lit.)

Stringa SMILE

Cc1ccc(C)c(C)c1

InChI

1S/C9H12/c1-7-4-5-8(2)9(3)6-7/h4-6H,1-3H3
GWHJZXXIDMPWGX-UHFFFAOYSA-N

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Descrizione generale

1,2,4-Trimethylbenzene, also known as Pseudocumene is an alkylated aromatics that is commonly used in the synthesis of polycyclic aromatic hydrocarbons. [1]

Applicazioni

1,2,4-Trimethylbenzene can be used as a reactant to synthesize:
  • 2,3,5-Trimethylbenzoquinone via oxidation reaction with phthaloyl peroxide under solvent-free conditions.[2]      
  • 1,2,4,5-Tetramethylbenzene (durene) by methylation using syngas in the presence of Cu and Zn-based bifunctional catalysts.[3]
  •  1,2,4-Oxadiazole derivatives via tandem reaction with nitroalkenes and nitriles in the presence of superacid CF3SO3H (TfOH).[4]

Avvertenze

Danger

Indicazioni di pericolo

H226,H304,H315,H319,H332,H335,H411

Classi di pericolo

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - 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)

118.4 °F - closed cup

Punto d’infiammabilità (°C)

48.0 °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
MKCV7979
MKCV5033
STBK9250
MKCS3775
MKCS3774

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Andrei A Golushko et al.
The Journal of organic chemistry, 84(11), 7495-7500 (2019-05-24)
The tandem reaction of nitroalkenes with arenes and nitriles in the superacid CF3SO3H (TfOH) results in the formation of 1,2,4-oxadiazole derivatives in yields up to 96%. This reaction proceeds via the consequent interaction of arenes and nitriles, as nucleophiles, with
An efficient synthesis of 2, 3, 5-trimethylbenzoquinone by metal-free oxidation of 1, 2, 4-trimethylbenzene
Yerramreddy TR, et al.
J. Chem. Res. (M), 43(11-12), 565-568 (2019)
Synthesis of durene by methylation of 1, 2, 4-trimethylbenzene with syngas over bifunctional CuZnZrO x-HZSM-5 catalysts
Wen D, et al.
Catalysis Science & Technology (2022)
Polycyclic aromatic hydrocarbon formation in a flame of the alkylated aromatic trimethylbenzene compared to those of the alkane dodecane
Tirthankar M, et al.
Combustion and Flame, 223, 495-510 (2021)
Z Zheng et al.
Applied microbiology and biotechnology, 57(4), 572-578 (2002-01-05)
Laboratory batch experiments were performed with contaminated aquifer sediments and four soluble aromatic components of jet fuel to assess their biodegradation under anaerobic conditions. The biodegradation of four aromatic compounds, toluene, o-xylene, 1,2,4-trimethylbenzene (TMB), and naphthalene, separately or together, was
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Questions

1–2 of 2 Questions  

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

    1 answer

    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

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

    1 answer

    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

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