(E)-4,4'-dihydroxyazobenzene, also known as Sudan I, is an organic compound characterized by its azo group (-N=N-) linking two aromatic rings, specifically benzene rings that each bear a hydroxyl (-OH) group at the para position. This compound is typically a reddish-brown solid at room temperature and is soluble in organic solvents but has limited solubility in water. It exhibits strong UV-Vis absorption characteristics, making it useful in dye applications, particularly in textiles and food products. The presence of hydroxyl groups contributes to its potential as a phenolic compound, which can participate in various chemical reactions, including oxidation. However, it is important to note that (E)-4,4'-dihydroxyazobenzene has raised health concerns due to its potential carcinogenic properties, leading to regulatory scrutiny in many countries. Its stability under different pH conditions and its reactivity with other chemical species are also notable characteristics that influence its applications and safety assessments.

(E)-4,4'-dihydroxyazobenzene

51437-66-2: (E)-4,4'-dihydroxyazobenzene, also known as Sudan I, is an organic compound characterized by its azo group (-N=N-) linking two aromatic rings, specifically benzene rings that each bear a hydroxyl (-OH) group at the para position. This compound is typically a reddish-brown solid at room temperature and is soluble in organic solvents but has limited solubility in water. It exhibits strong UV-Vis absorption characteristics, making it useful in dye applications, particularly in textiles and food products. The presence of hydroxyl groups contributes to its potential as a phenolic compound, which can participate in various chemical reactions, including oxidation. However, it is important to note that (E)-4,4'-dihydroxyazobenzene has raised health concerns due to its potential carcinogenic properties, leading to regulatory scrutiny in many countries. Its stability under different pH conditions and its reactivity with other chemical species are also notable characteristics that influence its applications and safety assessments.

trans-4,4'-Azodiphenol

<p>Applications trans-4,4'-Azodiphenol-d8 is the isotope labelled analog of trans-4,4'-Azodiphenol (A950000); an azo dye and a reagent in the synthesis of azobenzene glycoconjugates which are prepared by click chemistry.<br>References Chandrasekaran, V., et al.: Chem. Commun., 48, 7519 (2012)<br></p>

CAS 51437-66-2

(E)-4,4'-dihydroxyazobenzene

trans-4,4'-Azodiphenol

Ref: TR-A950000

trans-4,4'-Azodiphenol-d8

Ref: TR-A950002