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Merck
CN

74658

Supelco

1,2,4,5-四甲苯

qNMR standard, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

别名:

杜烯, 1,2,4,5-四甲苯

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关于此项目

线性分子式:
C6H2(CH3)4
CAS Number:
95-93-2
分子量:
134.22
Beilstein:
1903393
EC 号:
202-465-7
MDL编号:
MFCD00008528
UNSPSC代码:
41116107
eCl@ss:
39011404
PubChem化学物质编号:
329765774
NACRES:
NA.24

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等级

certified reference material
TraceCERT®

质量水平

300

蒸汽密度

4.6 (vs air)

蒸汽压

160 mmHg ( 140 °C)

描述

qNMR Standard for organic solvents (6.9 ppm / 2.2 ppm)

保质期

limited shelf life, expiry date on the label

制造商/商品名称

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

技术

gas chromatography (GC): suitable

mp

76-80 °C (lit.)

密度

0.838 g/mL at 25 °C (lit.)

应用

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care
pharmaceutical

包装形式

neat

SMILES字符串

Cc1cc(C)c(C)cc1C

InChI

1S/C10H14/c1-7-5-9(3)10(4)6-8(7)2/h5-6H,1-4H3

InChI key

SQNZJJAZBFDUTD-UHFFFAOYSA-N

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相关类别

一般描述

该有证标准物质（CRM）是根据ISO/IEC 17025和ISO 17034生产和认证的。该CRM可追溯到来自NMI的原材料，如 NIST或NMIJ。
证书上给出了定量核磁共振法认证的内容，包括不确定性和失效日期。
下载证书网址：http://www.sigma-aldrich.com。

有关合适的仪器技术的更多信息，请参阅产品的分析证书。

查看我们完整的定量NMR标准品（qNMR标准品）系列。
This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Search & download your certificate here.

其他说明

化学位移：2.3 + 7.0 ppm（根据实验条件，化学位移可能略有不同）
合适的NMR溶剂：CDCl3
在我们的NMR在线平台ChemisTwin®上可以找到本品对应的数字化标准物质。您可使用ChemisTwin®上的数字等效品鉴定您的样品并进行定量分析（使用数字化外标）。可查看该物质的NMR谱图，只需点击几次鼠标，就能进行在线样品比对。欢迎点击了解更多，开启免费试用之旅。

法律信息

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

象形图

FlameEnvironment
GHS02,GHS09

警示用语：

Danger

危险声明

H228,H410

危险分类

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1

储存分类代码

4.1B - Flammable solid hazardous materials

WGK

WGK 1

闪点(°F)

165.2 °F - closed cup

闪点(°C)

74 °C - closed cup

法规信息

危险化学品

分析证书(COA)

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A Pawlukojć et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 63(3), 766-773 (2005-08-16)
The results of inelastic neutron scattering (INS), Raman and infrared (IR) studies on 1,2,4,5-tetramethylbenzene (durene), tetramethylpyrazine (TMP) and tetramethyl-1,4-benzoquinone (TMBQ) in the solid state are reported. The observed frequencies are analyzed on the basis of DFT calculations. The low frequency
J-B Ramond et al.
Letters in applied microbiology, 60(4), 359-366 (2014-12-17)
Normalization is a procedure classically employed to detect rare sequences in cellular expression profiles (i.e. cDNA libraries). Here, we present a normalization protocol involving the direct treatment of extracted environmental metagenomic DNA with S1 nuclease, referred to as normalization of
D Nardi et al.
Il Farmaco; edizione scientifica, 34(9), 789-801 (1979-09-01)
A series of substituted 2-(2,3,5,6-tetramethylbenzyl)imidazolines and related compounds have been synthesized to study the steric and hydrophobic effects on the vasoactivity of the introduction of four methyl groups on the phenyl moiety. The 2-(2,3,5,6-tetramethylbenzyl)imidazoline (I) showed a high hypertensive activity
A Leonardi et al.
Il Farmaco; edizione scientifica, 36(8), 711-720 (1981-08-01)
A series of N-[(2,3,4,6-tetramethylbenzoyl)alkyl]imidazoles and of N-([beta-(2,3,5,6-tetramethylphenyl)-beta-hydroxy]ethyl)imidazoles has been synthesized. All compounds were tested in mice for anticonvulsant activity against electroshock and pentylenetetrazole convulsions. These durene-derivatives showed good activity, whereas the corresponding benzene-derivatives were inactive.
S David et al.
Journal of inorganic biochemistry, 28(2-3), 125-135 (1986-10-01)
Solution equilibria are presented for in situ reactions of the type FeII(porp) + B----FeII(porp)B, where porp represents the dianion of some durene-capped porphyrins with variable length linking methylene straps, and B is 1-methyl, 1,2-dimethyl, or 1,5-dicyclohexylimidazole. Increasing distortion of the
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