3-hydroxy-cholestadien-(2.5)-one-(4) | 68138-42-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 3-hydroxy-cholestadien-(2.5)-one-(4)
• 英文别名: 3-Hydroxy-cholestadien-(2.5)-on-(4)；(8S,9S,10R,13R,14S,17R)-3-hydroxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-4-one
• CAS: 68138-42-1
• 化学式: C₂₇H₄₂O₂
• 分子量: 398.629
• InChiKey: DXUJHHUPXJFFGH-OLZFZNDLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.8
• 重原子数：
  29
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-hydroxy-cholestadien-(2.5)-one-(4) 在 盐酸 、 溶剂黄146 作用下， 生成 4-Hydroxy-cholestadien-(4.6)-on-(3)
  参考文献：
  名称：

  10.类固醇和相关化合物。第五部分类固醇二酚

  摘要：

  DOI：

  10.1039/jr9400000060
• 作为产物：
  描述：

  5.6ξ-dibromo-5ξ-cholestanediol-(3β.4β) 在 chromium(VI) oxide 、 溶剂黄146 、 苯 作用下， 生成 3-hydroxy-cholestadien-(2.5)-one-(4)
  参考文献：
  名称：

  10.类固醇和相关化合物。第五部分类固醇二酚

  摘要：

  DOI：

  10.1039/jr9400000060

文献信息

• Mercury Mass Balances: A Case Study of Two North Dakota Power Plants
  作者：Dennis L. Laudal、John H. Pavlish、John Graves、Diane Stockdill

  DOI：10.1080/10473289.2000.10464210

  日期：2000.10

  The Energy & Environmental Research Center (EERC) conducted a mercury-sampling program to provide data on the quantity and forms of Hg emitted and on the Hg removal efficiency of the existing air pollution control devices at two North Dakota power plants-Milton R. Young Station and Coal Creek Station. Minnkota Power Cooperative, Great River Energy, the North Dakota Industrial Commission, and EPRI funded the project. The primary objective was to obtain accurate measurements of Hg released from each plant, as verified by a material balance. A secondary objective was to evaluate the ability of a mercury continuous emission monitor (CEM) to measure total Hg at the stack.At both plants, speciated Hg measurements were made at the inlets and outlets of both the electrostatic precipitators (ESPs) and the flue gas desulfurization (FGD) systems. A Semtech Hg 2000 (Semtech Metallurgy AB) mercury CEM was used to measure the total Hg emissions at the stack in real time. Using these measurements and plant data, the measured Hg concentrations in the coal, FGD slurries, and ESP ash, a Hg mass flow rate was calculated at each sampling location. Excellent Hg mass balances were obtained (+/-15%). It was also found that the Hg was mostly in the elemental phase (similar to 90%), and the small amount of oxidized Hg that was generated was removed by the FGD systems.Insignificant amounts of particulate-bound Hg were measured at both plants. However, 10-20% of the elemental Kg measured prior to the ESP was converted to oxidized Hg across the ESP. The data show that, at these facilities, almost all of the Hg generated is being emitted into the atmosphere as elemental Hg. Local or regional deposition of the Hg emitted from these plants is not a concern. However, the Hg does become part of the global Hg burden in the atmosphere. Also, the evidence appears to indicate that elemental Hg is more difficult to remove from flue gas than oxidized Hg is.