32919-01-0

Basic information

• Product Name: 1-(4-((2,4-dihydroxyphenyl)diazenyl)phenyl)ethanone
• Synonyms: 1-(4-((2,4-dihydroxyphenyl)diazenyl)phenyl)ethanone
• CAS NO: 32919-01-0
• Molecular Weight: 256.261
• Mol File: 32919-01-0.mol

Chemical Properties

• CAS DataBase Reference: 1-(4-((2,4-dihydroxyphenyl)diazenyl)phenyl)ethanone(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-((2,4-dihydroxyphenyl)diazenyl)phenyl)ethanone(32919-01-0)
• EPA Substance Registry System: 1-(4-((2,4-dihydroxyphenyl)diazenyl)phenyl)ethanone(32919-01-0)

Safety Data

• Hazardous Substances Data: 32919-01-0(Hazardous Substances Data)

Upstream product

• 99-92-3 p-aminobenzophenone 
• 108-46-3 recorcinol 

Relevant articles and documents

Study of homologous series of azomesogens with lateral aromatic branch

A homologous series 4-acetyl-2',4'-bis (4-n-alkoxybenzoyloxy) azobenzenes of eleven homologues has been synthesized by fixing 4-acetyl phenyl azo group to resorcinol moiety. Both the terminal and lateral hydroxyl group were esterified by 4-n-alkoxy groups. All the members of the series are monotropic/ enantiotropic nematogens with the exception of the first member. The members of the series were characterized by standard spectroscopic methods, DSC, and optical microscopy. The mesomorphic properties of the present series are compared with other structurally related series.

Influence of different linkages on the mesomorphic properties of aromatic ring system liquid crystals

In order to study the effect of the central linkage on the mesomorphic behaviour of aromatic ring liquid crystals we have synthesized two homologues groups, group A includes compounds 1a-d and group B includes compounds 2a-e. Group A has azo, azomethine,

Convenient and rapid diazotization and diazo coupling reaction via aryl diazonium nanomagnetic sulfate under solvent-free conditions at room temperature

For the first time, nanomagnetic-supported sulfonic acid is used for conversion of several types of aromatic amine, containing electron-withdrawing groups as well as electron-donating groups to the corresponding azo dyes in excellent yield. The synthesis of these compounds is described by the sequential diazotization-diazo coupling of various aromatic amines with sodium nitrite, nanomagnetic supported sulfonic acid and coupling agents under solvent-free conditions at room temperature. This new method offers several advantages including short reaction time, mild reaction conditions, avoidance of harmful acids, and simple work-up procedure. More importantly, aryldiazonium salts supported on magnetic nanoparticles (aryl diazonium nanomagnetic sulfate) were sufficiently stable to be kept at room temperature in the dry state.