20815-54-7 Usage
Description
4-((p-Bromophenyl)azo)pyridine, commonly known as Sudan III, is an azo dye characterized by its red powder form. It is insoluble in water but readily soluble in organic solvents. 4-((p-Bromophenyl)azo)pyridine is recognized for its coloring properties, which have made it a popular choice in various applications such as coloring waxes, oils, and polishes. However, it is also classified as a carcinogen and mutagen, indicating its potential to cause cancer and genetic mutations. Its toxicity upon ingestion or inhalation, along with its ability to cause skin and eye irritation, has led to regulatory measures and restrictions in some countries to mitigate the associated health risks.
Uses
Used in Coloring Applications:
4-((p-Bromophenyl)azo)pyridine is used as a coloring agent in various products such as waxes, oils, and polishes for its vibrant red color. Its solubility in organic solvents makes it suitable for these applications, allowing for the even distribution of color in the final product.
Used in Industrial Processes:
In certain industries, 4-((p-Bromophenyl)azo)pyridine may be used as an intermediate in the synthesis of other dyes or compounds. Its chemical properties, including its azo linkage, can be exploited in the production of a range of colorants and related chemical products.
Used in Research and Development:
Due to its chemical characteristics, 4-((p-Bromophenyl)azo)pyridine can be utilized in research settings to study the properties of azo dyes and their interactions with various substrates. This can contribute to the development of new dyes with improved safety profiles or other applications.
Check Digit Verification of cas no
The CAS Registry Mumber 20815-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,1 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20815-54:
(7*2)+(6*0)+(5*8)+(4*1)+(3*5)+(2*5)+(1*4)=87
87 % 10 = 7
So 20815-54-7 is a valid CAS Registry Number.
InChI:InChI=1/C11H8BrN3/c12-9-1-3-10(4-2-9)14-15-11-5-7-13-8-6-11/h1-8H
20815-54-7Relevant articles and documents
Hierarchical Synthesis, Structure, and Photophysical Properties of Gallium- and Ruthenium-Porphyrins with Axially Bonded Azo Ligands
Ferguson, Michael J.,Gao, Yueze,Tykwinski, Rik R.,Walter, Vroni
supporting information, p. 16712 - 16720 (2020/11/30)
The hierarchical synthesis of three porphyrin and four bisporphyrin derivatives is presented. This strategy relies on the incorporation of linkers based on azo moieties appended with pyridyl and/or acetylenic groups that facilitate axial coordination to Ga- and Ru-metalloporphyrins. These porphyrinic systems allow for a quantitative analysis of the effects of diamagnetic anisotropy (DA) by using 1H NMR spectroscopic and X-ray crystallographic analyses. A simple power-law relationship between the proton chemical shift and the distance from the porphyrin core is experimentally outlined, which confirms previous theoretical predictions and shows that the limit of DA is about 2 nm. Photophysical properties of the azo-linked porphyrins are analyzed by UV/Vis spectroscopy, showing that significant cis–trans isomerization is not observed for azo ligands bound only to Ga-porphyrins. Incorporation of Ru-porphyrins to an azo ligand facilitates photoswitching behavior, but the process faces competition from decarbonylation of the Ru-porphyrin, and appreciable switching is only documented for GaL1Ru.
