L-谷氨酸,N-[[5-(二甲氨基)-1-萘基]磺酰]- | 1101-68-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: L-谷氨酸,N-[[5-(二甲氨基)-1-萘基]磺酰]-
• 英文名称: dansyl-L-glutamic acid
• 英文别名: N-dansyl-L-glutamic acid；Dns-glutamic acid；Dansyl-L-Glutamate；(2S)-2-[[5-(dimethylamino)naphthalen-1-yl]sulfonylamino]pentanedioic acid
• CAS: 1101-68-4
• 化学式: C₁₇H₂₀N₂O₆S
• 分子量: 380.422
• InChiKey: OXWKCHDQOLCMPE-ZDUSSCGKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  26
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  132
• 氢给体数：
  3
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  dansyl-D,L-glutamic acid 生成 L-谷氨酸,N-[[5-(二甲氨基)-1-萘基]磺酰]- 、 dansyl-D-glutamic acid
  参考文献：
  名称：

  旋光异构体在含有麦角灵骨架的手性填料上的直接拆分。5.氨基酸衍生物的对映体分离。

  摘要：

  描述了一种基于麦角生物碱的手性固定相制备的新方法。合成是基于将特固脲的烯丙基衍生物与巯基丙基硅烷化的硅胶结合。与先前研究的相比，该填料表现出更高的手性选择剂含量，稳定性，可再现性和对氨基酸的对映选择性。研究了具有不同侧链和取代基的氨基酸的色谱行为，以便更深入地了解对映鉴别机理，并确定特固利作为此类化合物的手性选择剂的局限性和强度。检查了多种因素，包括流动相参数，例如pH，离子强度，有机改性剂的含量和性质以及温度。

  DOI：

  10.1021/ac950698c

文献信息

• Direct Resolution of Optically Active Isomers on Chiral Packings Containing Ergoline Skeletons. 5. Enantioseparation of Amino Acid Derivatives
  作者：A. Messina、A. M. Girelli、M. Flieger、M. Sinibaldi、P. Sedmera、L. Cvak

  DOI：10.1021/ac950698c

  日期：1996.4.1

  alkaloid-based chiral stationary phase preparation is described. Synthesis is based on bonding the allyl derivative of terguride to mercaptopropylsilanized silica gel. The packing exhibits higher content of chiral selector, stability, reproducibility, and enantioselectivity toward amino acids compared to that previously studied. The chromatographic behavior of amino acids with different side chains and substituent

  描述了一种基于麦角生物碱的手性固定相制备的新方法。合成是基于将特固脲的烯丙基衍生物与巯基丙基硅烷化的硅胶结合。与先前研究的相比，该填料表现出更高的手性选择剂含量，稳定性，可再现性和对氨基酸的对映选择性。研究了具有不同侧链和取代基的氨基酸的色谱行为，以便更深入地了解对映鉴别机理，并确定特固利作为此类化合物的手性选择剂的局限性和强度。检查了多种因素，包括流动相参数，例如pH，离子强度，有机改性剂的含量和性质以及温度。
• Microflow cell
  申请人：NIHON BUNKO KOGYO KABUSHIKI KAISHA

  公开号：EP0476248A1

  公开（公告）日：1992-03-25

  A microflow cell comprising an outer cylinder disposed on the outer periphery of a cylindrical flow cell and having a flat surface on at least a light-entering surface, and a filling material inserted between the outer cylinder and the flow cell and a capillary electrophoresis method using such a microflow cell. Since the outer cylinder is provided on the outer periphery of the cylindrical flow cell and the gap between the flow cell and the outer cylinder is filled up with a filling liquid, the quantity of scattered light is reduced, thereby enabling the adoption of fluorometry in the analysis of capillary electrophoresis.

  一种微流池，包括一个设置在圆柱形流动池外周的外筒，该外筒至少在入光面上有一个平坦的表面，以及一种插入外筒和流动池之间的填充材料，还有一种使用这种微流池的毛细管电泳方法。 由于外筒设置在圆柱形流动池的外周，且流动池与外筒之间的间隙被填充液填满，散射光量减少，因此可在毛细管电泳分析中采用荧光测定法。
• Tamper-resistant authentication mark for use in product or product packaging authentication
  申请人：——

  公开号：US20040023397A1

  公开（公告）日：2004-02-05

  A method of authenticating products or packaging by analyzing key ingredients on products or on product packaging is disclosed. Light-sensitive compounds can be used to identify the product or product packaging. The product or product package may include visible or invisible ink containing a particular light-sensitive compound. One or more light-sensitive compounds and ink, if used, may be printed in one or more locations on the product or product packaging to produce an authentication mark to inhibit inadvertent or intentional removal of the mark, thereby rendering the mark tamper-resistant. The mark is sealed to isolate the mark from the environment. A device may be used to irradiate the mark and read light absorption or emission. A controller determines the authenticity of the mark by comparing the emitted or absorbed properties to a standard.

  本发明公开了一种通过分析产品或产品包装上的关键成分来鉴定产品或包装的方法。光敏化合物可用于识别产品或产品包装。产品或产品包装可包括含有特定光敏化合物的可见或不可见油墨。可以在产品或产品包装上的一个或多个位置印上一种或多种光敏化合物和墨水（如果使用），以产生验证标记，防止无意或有意去除标记，从而使标记具有防篡改功能。标记被密封起来，使标记与环境隔离。可使用一个装置照射标记并读取光吸收或发射。控制器通过将发射或吸收特性与标准进行比较来确定标记的真伪。
• Chiral temperature gradient focusing
  申请人：Ross J. David

  公开号：US20050258040A1

  公开（公告）日：2005-11-24

  A method and device are provided for concentrating and separating materials in fluids within a fluidic device having a fluid conduit such as a channel or capillary. The concentration is achieved by balancing the electrophoretic velocity of a material against the bulk flow of fluid in the presence of a temperature gradient. An additive is added to the fluid which interacts with the material and which modifies the normal electrophoretic mobility of the material. Using an appropriate fluid, the temperature gradient can generate a corresponding gradient in the electrophoretic velocity so that the electrophoretic and bulk velocities sum to zero at a unique position along the conduit and the material will be focused at that position. The method and device may be adapted for use with a variety of materials including fluorescent dyes, amino acids, proteins, DNA and to concentrate a dilute material.

  本发明提供了一种方法和装置，用于在具有通道或毛细管等流体导管的流体装置内浓缩和分离流体中的材料。在存在温度梯度的情况下，通过平衡材料的电泳速度与流体的体积流来实现浓缩。在流体中加入添加剂，添加剂与材料相互作用，改变材料的正常电泳流动性。使用适当的流体，温度梯度可在电泳速度中产生相应的梯度，从而使电泳速度和体积速度之和在导管的某一特定位置为零，材料将在该位置聚焦。该方法和装置可用于各种材料，包括荧光染料、氨基酸、蛋白质、DNA 和浓缩稀释材料。
• Termination of the structural confusion between plipastatin A1 and fengycin IX
  作者：Miho Honma、Kazuaki Tanaka、Katsuhiro Konno、Kenji Tsuge、Toshikatsu Okuno、Masaru Hashimoto

  DOI：10.1016/j.bmc.2012.04.040

  日期：2012.6

  Plipastatin A1 and fengycin IX were experimentally proven to be identical compounds, while these had been considered as diastereomers due to the permutation of the enantiomeric pair of Tyr in most papers. The H-1 NMR spectrum changed to become quite similar to that of plipastatin A1, when the sample which provided resembled spectrum of fengycin IX was treated with KOAc followed by LH-20 gel filtration. Our structural investigations disclosed that the structures of these molecules should be settled into that of plipastatin A1 by Umezawa (L-Tyr4 and D-Tyr10). (C) 2012 Elsevier Ltd. All rights reserved.