74658

1,2,4,5-四甲苯

Standard for quantitative NMR, TraceCERT^®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

• 别名: 杜烯, 1,2,4,5-四甲苯
• 线性分子式: C₆H₂(CH₃)₄
• CAS号: 95-93-2
• 分子量: 134.22
• Beilstein: 1903393
• EC號碼: 202-465-7
• MDL號碼: MFCD00008528
• 分類程式碼代碼: 41116107
• eCl@ss: 39011404
• PubChem物質ID: 329765774
• NACRES: NA.24

属性

• 等級: Standard for quantitative NMR; certified reference material; TraceCERT^®
• 品質等級: 300
• 蒸汽密度: 4.6 (vs air)
• 蒸汽壓力: 160 mmHg ( 140 °C)
• 描述: qNMR Standard for organic solvents (6.9 ppm / 2.2 ppm)
• 儲存期限: limited shelf life, expiry date on the label
• 製造商／商標名: Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
• 技術: gas chromatography (GC): suitable; qNMR: suitable
• mp: 76-80 °C (lit.)
• 密度: 0.838 g/mL at 25 °C (lit.)
• 應用: cleaning products; cosmetics; environmental; flavors and fragrances; food and beverages; personal care; pharmaceutical
• 格式: neat
• SMILES 字串: Cc1cc(C)c(C)cc1C
• InChI: 1S/C10H14/c1-7-5-9(3)10(4)6-8(7)2/h5-6H,1-4H3
• InChI 密鑰: SQNZJJAZBFDUTD-UHFFFAOYSA-N

说明

一般說明

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。

應用

• OH-initiated Degradation of 1,2,4,5-Tetramethylbenzene: Research on the environmental behavior of 1,2,4,5-tetramethylbenzene highlights its degradation mechanisms and kinetics when exposed to OH radicals, underscoring its impact on air quality and potential ecological risks. This study is essential for environmental monitoring and management strategies involving aromatic hydrocarbons (Zhao et al., 2022).


• Low-Temperature Curing of Liquid Polybutadiene Using Nitrile Oxide: This study explores the application of 1,2,4,5-tetramethylbenzene in enhancing the curing process of liquid polybutadiene at low temperatures, illustrating its role as an effective solvent in the synthesis of polymers. Such applications are crucial for the development of advanced materials with improved performance characteristics (Li and Wang, 2022).


• Hygroscopic Properties of Calibration Standards for NMR Spectroscopy: 1,2,4,5-Tetramethylbenzene′s utility in nuclear magnetic resonance (NMR) spectroscopy as a calibration standard is detailed, focusing on its hygroscopic tendencies which affect the accuracy of quantitative analyses. This is vital for ensuring the reliability and precision of chemical measurements in research and industrial applications (Suiter and Widegren, 2021).


• Novel Sampling Strategy for Alive Animal Volatolome Extraction: The compound′s use in gas chromatography-mass spectrometry (GC-MS) based untargeted metabolomics for identifying pheromones in animal studies showcases its applicability in complex biological analyses, which is significant for advancements in veterinary and behavioral sciences (Lacalle-Bergeron et al., 2021).


• Microbial Degradation of Aromatic Hydrocarbons: The research on microbial degradation pathways of mobile aromatic hydrocarbons including 1,2,4,5-tetramethylbenzene provides insights into environmental remediation techniques. This is especially relevant for the biodegradation processes necessary for reducing pollution from dense non-aqueous phase liquids (DNAPLs) (Van Leeuwen et al., 2020).

其他說明

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

推薦產品

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。

法律資訊

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

安全信息

• 象形圖: GHS02,GHS09
• 訊號詞: Danger
• 危險聲明: H228,H410
• 防範說明: P210 - P240 - P241 - P273 - P280 - P370 + P378
• 危險分類: Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1
• 儲存類別代碼: 4.1B - Flammable solid hazardous materials
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 165.2 °F - closed cup
• 閃點（°C）: 74 °C - closed cup