cresol red | 602-48-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: cresol red
• 英文别名: Kresol-rot；2-[(Z)-(4-hydroxy-3-methylphenyl)-(3-methyl-4-oxoniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
• CAS: 602-48-2
• 化学式: C₂₁H₁₈O₅S
• 分子量: 382.437
• InChiKey: DYXFNDRXWAWZBN-PGMHBOJBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  27
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  100
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  胱胺 、 cresol red 在 N,N'-二环己基碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 生成 N-[2-(2-Amino-ethyldisulfanyl)-ethyl]-2-{(4-hydroxy-3-methyl-phenyl)-[3-methyl-4-oxo-cyclohexa-2,5-dien-(Z)-ylidene]-methyl}-benzenesulfonamide
  参考文献：
  名称：

  Determination of pH with surface-enhanced Raman fiber optic probes

  摘要：

  Methyl red, cresol red, and 4-pyridinethiol were examined for their ability to determine the pH at a surface. Methyl red and cresol red were coupled to cystamine. This produced a disulfide derivatized indicator which formed robust monolayers on sliver substrates. The spectroscopic technique used to examine these compounds was surface-enhanced Raman spectroscopy. We determined that all of these compounds possessed surface-enhanced Raman bands which were characteristic of the molecular structure associated with the indicator and its conjugate acid. Methyl red represents a near resonance indicator. It showed a linear log (I 1400/I 1615) vs pH relationship from pH 2 to 4.5. Some interference due to buff er anions was observed. Cresol red was examined as a resonance Raman indicator. Its linear range was pH 2-8 for the ratio of I 1600/I 1390. An inflection In the calibration curve was observed near pH 5. Cresol red was tested on an optical fiber for Its usefulness as a remote pH probe. It functioned very well and was used to follow a flowing, pH gradient produced by adjusting a reservoir pH with acetic acid. 4-Pyridinethiol is a normal Raman indicator. It possessed a linear log (I 1005/I 1100) vs pH relationship between pH 5 and pH 9. The calibration curves, including the inflection in the case of cresol red, are explained with Gouy-Chapman-Stern theory.

  DOI：

  10.1021/ac00032a018

文献信息

• Colorant composition and uses thereof
  申请人：Ahlstrom Corporation

  公开号：EP3056549A1

  公开（公告）日：2016-08-17

  The present invention relates to a colorant composition comprising a cationic polyamine polymer, a crosslinker polymer and a dye. The composition can be used to impart color to a wide variety of fiber-containing substrates with a high degree of color-fastness.

  本发明涉及一种着色剂组合物，由阳离子多胺聚合物、交联聚合物和染料组成。该组合物可用于为各种含纤维的基材着色，并具有很高的色牢度。
• Molecular Resist Compositions, Methods of Patterning Substrates Using the Compositions and Process Products Prepared Therefrom
  申请人：MCLELLAN Joseph M.

  公开号：US20090311484A1

  公开（公告）日：2009-12-17

  The present invention is directed to molecular resist compositions comprising an organic amine, methods of forming features on substrates using the molecular resists compositions and process products prepared therefrom.
• Determination of pH with surface-enhanced Raman fiber optic probes
  作者：Ken I. Mullen、DaoXin. Wang、L. Gayle. Crane、Keith T. Carron

  DOI：10.1021/ac00032a018

  日期：1992.4.15

  Methyl red, cresol red, and 4-pyridinethiol were examined for their ability to determine the pH at a surface. Methyl red and cresol red were coupled to cystamine. This produced a disulfide derivatized indicator which formed robust monolayers on sliver substrates. The spectroscopic technique used to examine these compounds was surface-enhanced Raman spectroscopy. We determined that all of these compounds possessed surface-enhanced Raman bands which were characteristic of the molecular structure associated with the indicator and its conjugate acid. Methyl red represents a near resonance indicator. It showed a linear log (I 1400/I 1615) vs pH relationship from pH 2 to 4.5. Some interference due to buff er anions was observed. Cresol red was examined as a resonance Raman indicator. Its linear range was pH 2-8 for the ratio of I 1600/I 1390. An inflection In the calibration curve was observed near pH 5. Cresol red was tested on an optical fiber for Its usefulness as a remote pH probe. It functioned very well and was used to follow a flowing, pH gradient produced by adjusting a reservoir pH with acetic acid. 4-Pyridinethiol is a normal Raman indicator. It possessed a linear log (I 1005/I 1100) vs pH relationship between pH 5 and pH 9. The calibration curves, including the inflection in the case of cresol red, are explained with Gouy-Chapman-Stern theory.