5-hydroxy-3-methoxy-2-methyl-[1,4]benzoquinone | 5691-50-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-hydroxy-3-methoxy-2-methyl-[1,4]benzoquinone
• 英文别名: 5-Hydroxy-3-methoxy-2-methyl-[1,4]benzochinon；2-Hydroxy-6-methoxy-5-methyl-benzochinon
• CAS: 5691-50-9
• 化学式: C₈H₈O₄
• 分子量: 168.149
• InChiKey: WZUKRIOKSMMESZ-UHFFFAOYSA-N

物化性质

• 熔点：
  116 °C
• 沸点：
  314.2±42.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  12.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  63.6
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  2,4,5-triacetoxy-6-methoxy-toluene 在 硫酸 、 水 、 三氯化铁 作用下， 生成 5-hydroxy-3-methoxy-2-methyl-[1,4]benzoquinone
  参考文献：
  名称：

  The MMT Bag for Emission Source Sampling: Design and Evaluation

  摘要：

  This paper presents the design and evaluation results for a metal-coated multilayer Tedlar (MMT) bag that was developed for the collection of source emissions. The applicability of the MMT bag was evaluated for a number of important greenhouse relevant gases: CO, CO2, CH4, N2O, and total hydrocarbons (THCs). The bag was tested for durability and stability for a range of concentrations of the tested compounds using both laboratory-prepared samples and real source samples. The results show that all tested compounds were more stable when stored in the MMT bag than when stored in a regular Tedlar bag. These compounds can be stored at room temperature for at least 3 months without significant changes in concentration. When properly packed, the MMT bag is durable and may be shipped by air. The MMT bag is lower in cost, lighter in weight, and easier to clean, and it requires less devices during the subsequent laboratory analysis compared with a stainless steel canister, which is often used to collect air and source samples.

  DOI：

  10.1080/10473289.2001.10464257

文献信息

• The MMT Bag for Emission Source Sampling: Design and Evaluation
  作者：Zhihua Fan、Junfeng Zhang、Cheng-Wei Fan、David M. Pennise

  DOI：10.1080/10473289.2001.10464257

  日期：2001.1

  This paper presents the design and evaluation results for a metal-coated multilayer Tedlar (MMT) bag that was developed for the collection of source emissions. The applicability of the MMT bag was evaluated for a number of important greenhouse relevant gases: CO, CO2, CH4, N2O, and total hydrocarbons (THCs). The bag was tested for durability and stability for a range of concentrations of the tested compounds using both laboratory-prepared samples and real source samples. The results show that all tested compounds were more stable when stored in the MMT bag than when stored in a regular Tedlar bag. These compounds can be stored at room temperature for at least 3 months without significant changes in concentration. When properly packed, the MMT bag is durable and may be shipped by air. The MMT bag is lower in cost, lighter in weight, and easier to clean, and it requires less devices during the subsequent laboratory analysis compared with a stainless steel canister, which is often used to collect air and source samples.