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T73601

Sigma-Aldrich

1,2,4-三甲基苯

98%

别名:

偏三甲苯

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25 ML
$79.10
500 ML
$82.30
2 L
$245.00

About This Item

线性分子式:
C6H3(CH3)3
CAS号:
95-63-6
分子量:
120.19
Beilstein:
1903005
EC 号:
202-436-9
MDL编号:
MFCD00008527
UNSPSC代码:
12352100
eCl@ss:
39011403
PubChem化学物质编号:
24900445
NACRES:
NA.22

$79.10

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蒸汽密度

4.1 (vs air)

蒸汽压

4.5 mmHg ( 37.7 °C)

方案

98%

自燃温度

959 °F

expl. lim.

6.4 %

折射率

n20/D 1.504 (lit.)

沸点

168 °C (lit.)

mp

−44 °C (lit.)

密度

0.876 g/mL at 20 °C (lit.)

SMILES字符串

Cc1ccc(C)c(C)c1

InChI

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

InChI key

GWHJZXXIDMPWGX-UHFFFAOYSA-N

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相关类别

一般描述

1,2,4-三甲基苯，又称假枯烯，是一种烷基化芳烃，常用于多环芳烃合成。 [1]

应用

1,2,4-三甲基苯可用作合成以下物质的反应物：
  • 在无溶剂条件下与过氧化邻苯二甲酰进行氧化反应生成2,3,5-三甲基苯醌。[2]      
  • 在Cu和Zn基双功能催化剂存在的情况下进行合成气的甲基化反应生成1,2,4,5-四甲苯。[3]
  • 在存在超强酸CF3SO3H (TfOH)的情况下通过与硝基烯和腈的串联反应生成1,2,4-噁二唑衍生物。[4]

警示用语：

Danger

危险分类

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

靶器官

Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

118.4 °F - closed cup

闪点(°C)

48.0 °C - closed cup

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCV7979
MKCV5033
STBK9250
MKCS3776
MKCS3775

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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
Synthesis of durene by methylation of 1, 2, 4-trimethylbenzene with syngas over bifunctional CuZnZrO x-HZSM-5 catalysts
Wen D, et al.
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Polycyclic aromatic hydrocarbon formation in a flame of the alkylated aromatic trimethylbenzene compared to those of the alkane dodecane
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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)
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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  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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