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Pyridine, 4-(phenylazo)-, 1-oxide, also known as 4-(phenylazo)pyridine 1-oxide or 4-(phenylazo)-1-oxidopyridine, is an organic compound with the chemical formula C11H9N3O. It is a derivative of pyridine, a heterocyclic aromatic compound, with a phenylazo group attached at the 4-position and an oxide group at the 1-position. Pyridine, 4-(phenylazo)-, 1-oxide is characterized by its yellow crystalline appearance and is soluble in common organic solvents such as ethanol and acetone. It is primarily used as a chemical intermediate in the synthesis of various dyes, pigments, and pharmaceuticals. Due to its reactive nature, it is essential to handle Pyridine, 4-(phenylazo)-, 1-oxide with care, following proper safety protocols.

3223-51-6

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3223-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3223-51-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,2 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3223-51:
(6*3)+(5*2)+(4*2)+(3*3)+(2*5)+(1*1)=56
56 % 10 = 6
So 3223-51-6 is a valid CAS Registry Number.

3223-51-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-phenylazopyridine 1-oxide

1.2 Other means of identification

Product number -
Other names 1-Ossido-4-fenil-azo-piridina

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3223-51-6 SDS

3223-51-6Relevant academic research and scientific papers

THERMAL AND PHOTOCHEMICAL DECOMPOSITION OF 3- AND 4-AZIDOPYRIDINE 1-OXIDES IN NUCLEOPHILIC SOLVENTS

Abramovitch, Rudolph A.,Bachowska, Barbara,Tomasik, Piotr

, p. 805 - 815 (2007/10/02)

The thermolysis and photolysis of the title compounds in aniline, N-methylaniline, N,N-dimethylaniline, morpholine and dioxane containing methoxide ion in methanol afforded complex mixtures from which only major products were isolated.No ring-expansion products were detected.In aniline, many of its known oxidation products were found, the N-oxide acting as an oxidizing agent.Hydrogen-abstraction products were the main ones formed from pyridine 1-oxides.

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