2569-57-5

Basic information

• Product Name: 1-(2-Pyridinylazo)benzene
• Synonyms: 1-(2-Pyridinylazo)benzene;2-(Phenylazo)pyridine;2-Phenylazopyridine
• CAS NO: 2569-57-5
• Molecular Formula: C₁₁H₉N₃
• Molecular Weight: 183.21
• Mol File: 2569-57-5.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1-(2-Pyridinylazo)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(2-Pyridinylazo)benzene(2569-57-5)
• EPA Substance Registry System: 1-(2-Pyridinylazo)benzene(2569-57-5)

Safety Data

• Hazardous Substances Data: 2569-57-5(Hazardous Substances Data)

Usage

General Description

1-(2-Pyridinylazo)benzene, also known as PAB, is a chemical compound used as a reagent for the spectrophotometric determination of various metals such as copper, cadmium, and nickel. It belongs to the class of azo compounds and is commonly used in industrial and laboratory settings for the analysis of metal ions in solutions. PAB has a bright yellow color and works by forming colored complexes with metal ions, allowing for their quantitative determination. It is important to handle this chemical with care, as it may be harmful if ingested or inhaled, and can cause skin and eye irritation upon contact. Overall, 1-(2-Pyridinylazo)benzene is a versatile and valuable tool for the determination of metal ions in various applications.

Upstream product

• 504-29-0 2-aminopyridine 
• 62-53-3 aniline 
• 586-96-9 Nitrosobenzene 

Downstream Products

• 84027-71-4 cis-trans-cis-dichlorobis(2-phenylazopyridine)ruthenium(II) 
• 118275-56-2 Mo(2-(phenylazo)pyridine)3 
• 118275-57-3 W(2-(phenylazo)pyridine)3 
• 118275-55-1 Cr(2-(phenylazo)pyridine)3 
• 118275-50-6 Cr(CO)4(2-(phenylazo)pyridine) 
• 134399-41-0 (C₅H₄NN₂C₆H₅)BF₂⁽¹⁺⁾*F^(1-)=(C₅H₄NN₂C₆H₅)BF₃ 
• 132013-94-6 bis{2-(phenylazo)pyridine}silver(I) perchlorate 
• 154992-01-5 (C₆H₅NNC₅H₄N)SnCl₄ 
• 155515-51-8 cis-dichloro-2-(phenylazo)pyridine palladium(II) 
• 86646-03-9 mer-[Ru(pap)(tap)2](ClO₄)2*H₂O 
• 93454-94-5 Os(NC₅H₄N₂C₆H₄CH₃)2(NC₅H₄N₂C₆H₅)⁽²⁺⁾*2ClO₄^(1-)*H₂O = [Os(C₅H₄NN₂C₆H₄CH₃)2(NC₅H₄N₂C₆H₅)](ClO₄)2*H₂O 
• 172612-82-7 Os₃(CO)10(NC₅H₄N₂C₆H₅) 

Relevant articles and documents

Hydrogen peroxide based oxidation of hydrazines using HBr catalyst

Azo compounds (RN = NR′) are an important class of organic molecules that find wide application in organic synthesis. Herein, we report an efficient, practical and metal-free oxidation of hydrazines (RNH-NHR’) to azo compounds using 5 mol% HBr and hydrogen peroxide as terminal oxidant. This new method has been demonstrated by 40 examples with excellent yields. In addition, we showcased two examples of the one-pot sequential reactions involving our hydrazine oxidation/hydrolysis/Heck reaction or Cu-catalyzed N-arylation with aryl boronic acid. The distinct advantages of this protocol include metal-free catalysis, waste prevention, and easy operation.

PREPARATION OF AZO COMPOUNDS WITH SOLID CATALYSTS

The present invention refers to a procedure for preparing azo compounds comprising a reaction between at least: one amine or polyamine, molecular oxygen, a catalyst comprising at least one support selected from at least a metal oxide of one of the elements of the groups 3, 4, 5, 6, 8, 9, 11 and 13, silica, an anionic laminar compound of hydrotalcite type or its derivatives, active carbon or an organic polymer. In addition, said catalyst may contain nanoparticles of gold.