13417-36-2

Basic information

• Product Name: 1-(2,4-dinitrophenyl)-1H-pyrazole
• Synonyms: 1-(2,4-Dinitrophenyl)-1H-pyrazole; 1-(2,4-Dinitrophenyl)pyrazole; 1-(2,4-Dinitrophenyl)-pyrazole; 1H-Pyrazole, 1-(2,4-dinitrophenyl)-; Pyrazole, 1-(2,4-dinitrophenyl)-
• CAS NO: 13417-36-2
• Molecular Formula: C₉H₆N₄O₄
• Molecular Weight: 234.1683
• Mol File: 13417-36-2.mol

Chemical Properties

• Boiling Point: 399.8°C at 760 mmHg
• Flash Point: 195.6°C
• Density: 1.59g/cm³
• Vapor Pressure: 3.07E-06mmHg at 25°C
• Refractive Index: 1.708
• CAS DataBase Reference: 1-(2,4-dinitrophenyl)-1H-pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(2,4-dinitrophenyl)-1H-pyrazole(13417-36-2)
• EPA Substance Registry System: 1-(2,4-dinitrophenyl)-1H-pyrazole(13417-36-2)

Safety Data

• Hazardous Substances Data: 13417-36-2(Hazardous Substances Data)

Usage

Uses

Used in Analytical Chemistry:
1-(2,4-dinitrophenyl)-1H-pyrazole is used as a detection reagent for the identification and quantification of aldehydes and ketones. It forms colorful derivatives with these carbonyl compounds, making it easier to analyze and measure their concentrations in various samples.
Used in Pharmaceutical Synthesis:
1-(2,4-dinitrophenyl)-1H-pyrazole serves as a precursor in the synthesis of various pharmaceuticals and organic compounds. Its unique chemical properties allow it to be a valuable building block in the creation of new and potentially beneficial drugs.
Used in Cancer Research:
1-(2,4-dinitrophenyl)-1H-pyrazole has demonstrated potential anti-cancer properties, making it a subject of interest for researchers. It is currently being investigated as a possible drug candidate for the treatment of various types of cancer.
Used in Inflammation Research:
In addition to its anti-cancer potential, 1-(2,4-dinitrophenyl)-1H-pyrazole has also shown anti-inflammatory properties. This makes it a promising candidate for further research into its potential applications in the treatment of inflammatory conditions.

Upstream product

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Relevant articles and documents

Application of screening experimental designs to assess chromatographic isotope effect upon isotope-coded derivatization for quantitative liquid chromatography-mass spectrometry

Isotope effect may cause partial chromatographic separation of labeled (heavy) and unlabeled (light) isotopologue pairs. Together with a simultaneous matrix effect, this could lead to unacceptable accuracy in quantitative liquid chromatography-mass spectrometry assays, especially when electrospray ionization is used. Four biologically relevant reactive aldehydes (acrolein, malondialdehyde, 4-hydroxy-2-nonenal, and 4-oxo-2-nonenal) were derivatized with light or heavy (d3-, 13C6-, 15N2-, or 15N4-labeled) 2,4-dinitrophenylhydrazine and used as model compounds to evaluate chromatographic isotope effects. For comprehensive assessment of retention time differences between light/heavy pairs under various gradient reversed-phase liquid chromatography conditions, major chromatographic parameters (stationary phase, mobile phase pH, temperature, organic solvent, and gradient slope) and different isotope labelings were addressed by multiple-factor screening using experimental designs that included both asymmetrical (Addelman) and Plackett-Burman schemes followed by statistical evaluations. Results confirmed that the most effective approach to avoid chromatographic isotope effect is the use of 15N or 13C labeling instead of deuterium labeling, while chromatographic parameters had no general influence. Comparison of the alternate isotope-coded derivatization assay (AIDA) using deuterium versus 15N labeling gave unacceptable differences (>15%) upon quantifying some of the model aldehydes from biological matrixes. On the basis of our results, we recommend the modification of the AIDA protocol by replacing d 3-2,4-dinitrophenylhydrazine with 15N- or 13C-labeled derivatizing reagent to avoid possible unfavorable consequences of chromatographic isotope effects.

Direct N-arylation of azaheterocycles with aryl halides under ligand-free condition

A simple and efficient Ci￡N cross-coupling method of aryl halides with various heterocycles was reported, by using 10 mol% of CuI as catalyst and 1.2 equiv. NaH as base. Aryl iodides, aryl bromides and many substituted aryl chlorides could efficiently react with heterocycles, providing variety of N-arylated products in good to excellent yields. The ligand-free catalyst system was stable in air and could be readily reused. An efficient, convenient and applicable method was developed for the N-arylation of azaheterocycles catalyzed by CuI and NaH under ligand free condition. Copyright