S-2,5,8,11-tetraoxadocosan-22-yl ethanethioate | 663171-35-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 硫代羧酸及其衍生物
• 英文名称: S-2,5,8,11-tetraoxadocosan-22-yl ethanethioate
• 英文别名: Thioacetic acid S-(11-{2-[2-(2-methoxyethoxy)ethoxy]ethoxy}undecyl)ester；S-[11-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]undecyl] ethanethioate
• CAS: 663171-35-5
• 化学式: C₂₀H₄₀O₅S
• 分子量: 392.601
• InChiKey: JXIPMJZDYPBSOO-UHFFFAOYSA-N

物化性质

• 沸点：
  467.5±25.0 °C(Predicted)
• 密度：
  0.993±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  26
• 可旋转键数：
  22
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  79.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  S-2,5,8,11-tetraoxadocosan-22-yl ethanethioate 在 盐酸 作用下， 以 甲醇 为溶剂， 生成 11-[2-[2-(2-甲氧基乙氧基)乙氧基]乙氧基]十一烷-1-硫醇
  参考文献：
  名称：

  Probing Resistance to Protein Adsorption of Oligo(ethylene glycol)-Terminated Self-Assembled Monolayers by Scanning Force Microscopy

  摘要：

  Functionalized scanning force microscope (SFM) probes were used to investigate and to mimic the interaction between fibrinogen and self-assembled monolayers (SAMs) of methoxytri(ethylene glycol) undecanethiolates -S(CH2)(11)(OCH2CH2)(3)OCH3 (EG(3)-OMe) on gold and silver surfaces. The SAMs on gold an resistant to protein adsorption, whereas the films on silver adsorb variable amounts of fibrinogen. Experiments were performed with both charged and hydrophobic tips as models for local protein structures to determine the influence of these parameters on the interaction with the SAMs. A striking difference between the two monolayers was established when the forces were measured in an aqueous environment with hydrophobic probes. While a long-range attractive hydrophobic interaction was observed for the EG3-OMe on silver, a repulsive force was measured for EG3-OMe on gold. The strong dependence of the repulsive force for the EG3-OMe-gold system upon the solution ionic strength suggests that this interaction has a significant electrostatic contribution. The observed differences are attributed to the distinct molecular :conformations of the oligo(ethylene glycol) tails on the gold-supported (helical) and silver-supported ("all-trans") monolayers. A comparison of the force/distance curves for the EG3-OMe SAMs with those measured under identical conditions on end-grafted poly(ethylene glycol) (PEG 2000) on gold further emphasizes that the nature of the repulsive forces originating from the short-chain oligomers is unique and not related to a "steric repulsion" effect.

  DOI：

  10.1021/ja991049b
• 作为产物：
  描述：

  三甘醇单甲醚 在 安息香双甲醚 、 sodium hydride 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 14.25h， 生成 S-2,5,8,11-tetraoxadocosan-22-yl ethanethioate
  参考文献：
  名称：

  Nanoparticle-Based Receptors Mimic Protein-Ligand Recognition

  摘要：

  The self-assembly of a monolayer of ligands on the surface of noble-metal nanoparticles dictates the fundamental nanoparticle's behavior and its functionality. In this combined computational-experimental study, we analyze the structure, organization, and dynamics of functionalized coating thiols in monolayer-protected gold nanoparticles (AuNPs). We explain how functionalized coating thiols self-organize through a delicate and somehow counterintuitive balance of interactions within the monolayer itself and with the solvent. We further describe how the nature and plasticity of these interactions modulate nanoparticle-based chemosensing. Importantly, we found that self-organization of coating thiols can induce the formation of binding pockets in AuNPs. These transient cavities can accommodate small molecules, mimicking protein-ligand recognition, which could explain the selectivity and sensitivity observed for different organic analytes in NMR chemosensing experiments. Thus, our findings advocate for the rational design of tailored coating groups to form specific recognition binding sites on monolayer-protected AuNPs.

  DOI：

  10.1016/j.chempr.2017.05.016

文献信息

• Sample presentation device
  申请人：Belisle M. Christopher

  公开号：US20050164402A1

  公开（公告）日：2005-07-28

  The present invention relates to sample presentation devices useful in performing analytical measurements. These devices have been configured to enable various aspects of liquid handling such as: retention, storage, transport, concentration, positioning, and transfer. Additionally, these devices can enhance the detection and characterization of analytes. The sample presentation devices of the present invention are comprised of one or more substrates having a plurality of zones of differing wettability. Methods of analyzing samples using the sample presentation device of the invention, as well as methods of making the sample presentation devices are disclosed.

  本发明涉及用于执行分析测量的样品呈现装置。这些装置已被配置为使液体处理的各个方面得到了促进，例如：保留、储存、运输、浓缩、定位和转移。此外，这些装置可以增强分析物的检测和表征。本发明的样品呈现装置由一个或多个基板组成，具有多个不同润湿性的区域。公开了使用本发明的样品呈现装置分析样品的方法，以及制备样品呈现装置的方法。
• Sample Presentation Device
  申请人：Belisle Christopher M.

  公开号：US20080248589A1

  公开（公告）日：2008-10-09

  The present invention relates to sample presentation devices useful in performing analytical measurements. These devices have been configured to enable various aspects of liquid handling such as: retention, storage, transport, concentration, positioning, and transfer. Additionally, these devices can enhance the detection and characterization of analytes. The sample presentation devices of the present invention are comprised of one or more substrates having a plurality of zones of differing wettability. Methods of analyzing samples using the sample presentation device of the invention, as well as methods of making the sample presentation devices are disclosed.

  本发明涉及用于执行分析测量的样品呈现装置。这些装置已被配置为使液体处理的各个方面如：保留、储存、运输、浓缩、定位和转移成为可能。此外，这些装置可以增强分析物的检测和表征。本发明的样品呈现装置包括一个或多个基板，其具有多个不同润湿性的区域。揭示了使用本发明的样品呈现装置分析样品的方法，以及制作样品呈现装置的方法。
• SAMPLE PRESENTATION DEVICE
  申请人：Belisle Christopher M.

  公开号：US20110070659A1

  公开（公告）日：2011-03-24

  The present invention relates to sample presentation devices useful in performing analytical measurements. These devices have been configured to enable various aspects of liquid handling such as: retention, storage, transport, concentration, positioning, and transfer. Additionally, these devices can enhance the detection and characterization of analytes. The sample presentation devices of the present invention are comprised of one or more substrates having a plurality of zones of differing wettability. Methods of analyzing samples using the sample presentation device of the invention, as well as methods of making the sample presentation devices are disclosed.

  本发明涉及用于执行分析测量的样品呈现装置。这些装置已被配置为使得液体处理的各个方面如保留、存储、传输、浓缩、定位和转移成为可能。此外，这些装置可以增强分析物的检测和表征。本发明的样品呈现装置由一个或多个基板组成，具有多个不同润湿性的区域。公开了使用本发明的样品呈现装置分析样品的方法，以及制造样品呈现装置的方法。