5β-cholestanediyl-(3β.6β)-diacetate | 96612-04-3

• 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: 5β-cholestanediyl-(3β.6β)-diacetate
• 英文别名: (10R)-3c.6c-Diacetoxy-10r.13c-dimethyl-17c-((R)-1.5-dimethyl-hexyl)-(5cH.8cH.9tH.14tH)-hexadecahydro-1H-cyclopenta[a]phenanthren；5β-Cholestandiyl-(3β.6β)-diacetat；3β.6β-Diacetoxy-5β-cholestan；3β,6β-Diacetoxy-5β-cholestan；[(3S,5R,6R,8S,9S,10R,13R,14S,17R)-6-acetyloxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate
• CAS: 96612-04-3
• 化学式: C₃₁H₅₂O₄
• 分子量: 488.751
• InChiKey: CCNIYQVWQJGGBH-IRKSOOGRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.58
• 重原子数：
  35.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.94
• 拓扑面积：
  52.6
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  5β-cholestanediyl-(3β.6β)-diacetate 在 chromium(VI) oxide 、 盐酸 、 溶剂黄146 作用下， 生成 5α-cholanic acid-3,6-dione
  参考文献：
  名称：

  Spatial Variability of Different Fractions of Particulate Matter within an Urban Environment and between Urban and Rural Sites

  摘要：

  The spatial variability of different fractions of particulate matter (PM) was investigated in the city of Basel, Switzerland, based on measurements performed throughout 1997 with a mobile monitoring station at six sites and permanently recorded measurements from a fixed site. Additionally, PM10 measurements from the following year, which were concurrently recorded at two urban and two rural sites, were compared. Generally, the spatial variability of PM4, PM10, and total suspended particulates (TSP) within this Swiss urban environment (area = 36 km2) was rather limited. With the exception of one site in a street canyon next to a traffic light, traffic density had only a weak tendency to increase the levels of PM. Mean PM10 concentration at six sites with different traffic densities was in the range of less than +/- 10% of the mean urban PM10 level. However, comparing the mean PM levels on workdays to that on weekends indicated that the impact of human activities, including traffic, on ambient PM levels may be considerable. Differences in the daily PM10 concentrations between urban and more elevated rural sites were strongly influenced by the stability of the atmosphere. In summer, when no persistent surface inversions exist, differences between urban and rural sites were rather small. It can therefore be concluded that spatial variability of annual mean PM concentration between urban and rural sites in the Basel area may more likely be caused by varying altitude than by distance to the city center.

  DOI：

  10.1080/10473289.2000.10464161
• 作为产物：
  描述：

  cholesterol 生成 5β-cholestanediyl-(3β.6β)-diacetate
  参考文献：
  名称：

  The Hydration of Unsaturated Steroids by the Brown Hydroboration Reaction. I. Monounsaturated Steroids

  摘要：

  DOI：

  10.1021/jo01028a032

文献信息

• The Fate of Hydrogen Peroxide as an Oxygen Source for Bioremediation Activities within Saturated Aquifer Systems
  作者：Mark Zappi、Kenneth White、Huey-Min Hwang、Rakesh Bajpai、Mohammad Qasim

  DOI：10.1080/10473289.2000.10464207

  日期：2000.10

  In situ bioremediation is an innovative technique for the remediation of contaminated aquifers that involves the use of microorganisms to remediate soils and groundwaters polluted by hazardous substances. During its application, this process may require the addition of nutrients and/or electron accepters to stimulate appropriate biological activity. Hydrogen peroxide has been commonly used as an oxygen source because of the Limited concentrations of oxygen that can be transferred into the groundwater using above-ground aeration followed by reinjection of the oxygenated groundwater into the aquifer or subsurface air sparging of the aquifer. Because of several potential interactions of H2O2 with various aquifer material constituents, its decomposition may be too rapid, making effective introduction of the H2O2 into targeted treatment zones extremely difficult and costly. Therefore, a bench-scale study was conducted to determine the fate of H2O2 within subsurface aquifer environments. The purpose of this investigation was to identify those aquifer constituents, both biotic and abiotic, that are most active in controlling the fate of H2O2. The decomposition rates of H2O2 were determined using both equilibrated water samples and soil slurries. Results showed H2O2 decomposition to be effected by several commonly found inorganic soil components; however, biologically mediated catalytic reactions were determined to be the most substantial.