2-(5-chloro-2-pyridylazo)-5-dimethylaminophenol | 50783-81-8

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 2-(5-chloro-2-pyridylazo)-5-dimethylaminophenol
• 英文别名: 6-[2-(5-Chloropyridin-2-yl)hydrazinylidene]-3-(dimethylamino)cyclohexa-2,4-dien-1-one；2-[(5-chloropyridin-2-yl)diazenyl]-5-(dimethylamino)phenol
• CAS: 50783-81-8
• 化学式: C₁₃H₁₃ClN₄O
• 分子量: 276.725
• InChiKey: WEGFGELGKKRBLD-UHFFFAOYSA-N

物化性质

• 沸点：
  483.3±45.0 °C(Predicted)
• 密度：
  1.28±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  61.1
• 氢给体数：
  1
• 氢受体数：
  5

安全信息

• 海关编码：
  2933399090

反应信息

• 作为反应物：
  描述：

  titanium (IV) dihydroxide 、 2-(5-chloro-2-pyridylazo)-5-dimethylaminophenol 在 双氧水 作用下， 以 乙醇 、 水 为溶剂， 以>99的产率得到titanium(IV) hydrogen peroxide 2-(5-chloro-2-pyridylazo)-5-dimethylamonophenol complex
  参考文献：
  名称：

  Titanium Determination under High-Sensitivity Conditions with 2-(5-Chloro-2-pyridylazo)-5-dimethylaminophenol. II. Ternary Compounds of Ti(IV)–H₂O₂–5-ClDMPAP

  摘要：

  Ti(IV) together with pyridylazo-type reagents and other molecular compounds form ternary complexes that may stand as the basis for analytical methods designed for the quantitative determination of the metal. This paper reports the results obtained by the use of the system Ti(IV)–H2O2–5-ClDMPAP in aqueous ethanolic solutions, and application to routine analyses of Ti(IV) in various types of samples. The spectral characteristics of the complexes formed, the pH ranges appropriate for their formation, ethanol influence, composition and stability have been studied. The complex selected for this analytical work is formed between pH 2.5 and 6.5 with a 1:2:2 Ti(IV)–H2O2–5-ClDMPAP molar ratio. The system fulfils Beer’s law up to a Ti(IV) concentration of 0.7 ppm, working at λmax 534 nm. The molar absorptivity and Sandell index are 4.59×104 dm3 mol−1 cm−1 and 0.0010 μg cm−2 respectively

  DOI：

  10.1246/bcsj.60.2635