14150-95-9

Basic information

• Product Name: 2-Aminopyridine N-oxide
• Synonyms: 2-AMINOPYRIDINE N-OXIDE;1-Oxido-2-pyridinylamine;2-Amino-1-pyridine 1-oxide;2-Aminopyridine 1-oxide;2-Aminopyridine oxide;Pyridine, 2-amino-, 1-oxide;Aminopyridineoxide;2-AMINOPYRIDINE N-OXIDE 98+%
• CAS NO: 14150-95-9
• Molecular Formula: C₅H₆N₂O
• Molecular Weight: 110.11
• Product Categories: pharmacetical;Pyridine series;Amines;Pyridines
• Mol File: 14150-95-9.mol
• Article Data: 15

Chemical Properties

• Melting Point: 166°C
• Boiling Point: 212.4°Cat760mmHg
• Flash Point: 82.2°C
• Appearance: /
• Density: 1.23g/cm³
• Vapor Pressure: 1.77E-06mmHg at 25°C
• Refractive Index: 1.583
• PKA: pK1: 2.58(+1) (25°C)
• CAS DataBase Reference: 2-Aminopyridine N-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Aminopyridine N-oxide(14150-95-9)
• EPA Substance Registry System: 2-Aminopyridine N-oxide(14150-95-9)

Safety Data

• Hazard Codes: Xn
• Statements: 36/37/38-41-37/38-22
• Safety Statements: 36/37/39-39-26
• Hazardous Substances Data: 14150-95-9(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Synthetic Communications, 7, p. 509, 1977 DOI: 10.1080/00397917709409270

InChI:InChI=1/C5H6N2O/c6-5-3-1-2-4-7(5)8/h1-4H,6H2

Upstream product

• 6994-14-5 2-Acetamino-pyridin-1-oxid 
• 5255-67-4 ethyl 2-pyridinylcarbamate 
• 504-29-0 2-aminopyridine 
• 5231-96-9 N-(2-pyridyl)acetamide 
• 6974-72-7 2-pyridinecarboxamide 1-oxide 

Downstream Products

• 19250-24-9 sulfanilic acid-(1-oxy-[2]pyridylamide) 
• 14432-16-7 2-chloro-4-nitropyridine-N-oxide 
• 2402-95-1 2-chloropyridine-N-oxide 
• 96727-98-9 3-(2-pyridyl)-3H-1,2,3-triazolo<5,4-c>pyridine 
• 1202-34-2 di(pyridin-2-yl)amine 
• 1205-41-0 2-(pyridin-2-ylamino)pyridine 1-oxide 
• 53269-37-7 1-(2-pyridyl)-3-(2-pyridylamino)-2-pyridone 
• 53269-36-6 3-(2-pyridylamino)-2(1H)-pyridone 
• 1131-33-5 2-phenylpyridin N-oxide 
• 104938-51-4 2-Triphenylphosphoranylidenamino-pyridin-N-oxid 
• 25142-28-3 2-phenyl-1H-imidazo<1,2-a>pyridinium-3-olate 
• 14906-56-0 4-Acetamino-pyridin-1-oxid 
• 79690-68-9 2-(biphenyl-4'-yl)imidazo<1,2-a>pyridin-3-ol hydrobromide 

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Nanocomposite-based inorganic-organocatalyst Cu(II) complex and SiO2- and Fe3O4 nanoparticles as low-cost and efficient catalysts for aniline and 2-aminopyridine oxidation

Bis-imino Cu(II) complex (CuLAn2), in which the imine ligand (HLAn) acts as a bidentate chelating ligand, was synthesized. The catalytic potential of the inorganic-organocatalyst was studied homogeneously and heterogeneously in the oxidation of aniline and 2-aminopyridine by H2O2 or tBuOOH. Two heterogeneous inorganic-organocatalysts, CuLAn2@Fe3O4 and CuLAn2@SiO2@Fe3O4, were synthesized by the successful immobilization of CuLAn2 on the Fe3O4 surface and the composited Fe3O4 with SiO2, respectively. The heterogeneous structure of those inorganic-organocatalysts was confirmed using Fourier-transform infrared, scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, transmission electron microscopy, and magnetic properties. The adsorption–desorption isotherms revealed respectable adsorption parameters (SBET, Vp, and rp). All catalysts exhibited high potential in the oxidation of aniline (with phenylhydroxylamine as the main product) and good potential in the oxidation of 2-aminopyridine, in the first attempt (with 2-nitropyridine-N-oxide and 2-nitrosopyridine-N-oxide as main products), at room temperature. Acetonitrile was found to be the best solvent compared to ethanol, dimethyl sulfoxide, chloroform, and water. The homogeneous catalyst exhibited reusability for three times. The heterogeneous catalysts, CuLAn2@Fe3O4 and CuLAn2@SiO2@Fe3O4, were active for five and seven times, respectively. A mechanism was proposed within electron and oxygen transfer processes.