5422-91-3

Basic information

• Product Name: 2,5-Diphenylhydroquinone
• Synonyms: 2,5-Di(phenyl)benzene-1,4-diol;2,5-Diphenylhydroquinone;1,1':4',1''-Terbenzene-2',5'-diol
• CAS NO: 5422-91-3
• Molecular Formula: C₁₈H₁₄O₂
• Molecular Weight: 262.3
• Mol File: 5422-91-3.mol
• Article Data: 10

Chemical Properties

• Melting Point: 218-219 °C
• Boiling Point: 486.3°Cat760mmHg
• Flash Point: 235.1°C
• Appearance: /
• Density: 1.209g/cm³
• Vapor Pressure: 4.41E-10mmHg at 25°C
• Refractive Index: 1.651
• PKA: 10.20±0.23(Predicted)
• CAS DataBase Reference: 2,5-Diphenylhydroquinone(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-Diphenylhydroquinone(5422-91-3)
• EPA Substance Registry System: 2,5-Diphenylhydroquinone(5422-91-3)

Safety Data

• Hazardous Substances Data: 5422-91-3(Hazardous Substances Data)

Usage

General Description

2,5-Diphenylhydroquinone is a chemical compound with the molecular formula C12H10O2. It belongs to the class of hydroquinone compounds, which are commonly used in industrial and research applications. 2,5-Diphenylhydroquinone is a white crystalline solid that is insoluble in water but soluble in organic solvents. It is primarily used as a reagent in organic synthesis and as a stabilizer in the production of polymers and plastics. Its structure and properties make it useful for a variety of chemical reactions and processes, and it is an important component in the production of certain pharmaceuticals and fine chemicals. However, the compound is also known to be a skin and eye irritant and should be handled with care in laboratory and industrial settings.

InChI:InChI=1/C18H14O2/c19-17-12-16(14-9-5-2-6-10-14)18(20)11-15(17)13-7-3-1-4-8-13/h1-12,19-20H

Upstream product

• 100151-17-5 2’,5’-dimethoxy-1,1’:4’,1”-terphenyl 
• 844-51-9 2,5-diphenyl-p-benzoquinone 
• 829-85-6 diphenylphosphane 
• 106-51-4 p-benzoquinone 
• 71-43-2 benzene 
• 363-03-1 2-phenyl-1,4-benzoquinone 
• 98-80-6 phenylboronic acid 
• 51560-21-5 1,4-diiodo-2,5-dimethoxybenzene 
• 579-07-7 1-Phenylpropane-1,2-dione 
• 536-74-3 phenylacetylene 
• 64-19-7 acetic acid 
• 5732-24-1 benzothiophene-2,3-dicarboxylic anhydride 
• 95-15-8 Benzo[b]thiophene 

Downstream Products

• 28293-39-2 2,5-dibromo-3,6-diphenyl-[1,4]benzoquinone 
• 844-51-9 2,5-diphenyl-p-benzoquinone 

Relevant articles and documents

Enhanced thermo-oxidative stability of sulfophenylated poly(ether sulfone)s

Monophenylated poly(ether sulfone)s (Ph-PES) and diphenylated poly(ether sulfone)s (DiPh-PES), were synthesized as starting materials for the preparation of sulfonated polymers with well-defined chemical structure. Mild post-polymerization sulfonation conditions led to sulfonated Ph-PES (Ph-SPES) bearing acid groups on both the pendant phenyl group and the backbone, and sulfonated DiPh-PES (DiPh-SPES) bearing acid groups only on the two pendant phenyl groups. Both series of polymers had excellent mechanical properties, high glass transition temperatures, good thermal and oxidative stability, as well as good dimensional stability. It is interesting to note that exclusively pendant-phenyl-sulfonated (bis-sulfophenylated) DiPh-SPES copolymers possessed obviously better thermal and oxidative stability compared with the corresponding pendant-phenyl-sulfonated/main-chain-sulfonated Ph-SPES copolymers. The methanol permeability values of the membranes were in the range of 7.0?×?10-7-9.4?×?10-8?cm2/s at 30?°C, which is several times lower than that of Nafion 117. DiPh-SPES-50 and Ph-SPES-40 also exhibited high proton conductivity (approximately 0.13?S/cm at 100?°C).

Side-chain sulfonated random and multiblock poly(ether sulfone)s for PEM applications

Copoly(arylene ether sulfone)s from 4,4′-difluorodiphenyl sulfone, 4,4′-dihydroxydiphenyl sulfone bis-trimethylsilylether, and 2,5-diphenylhydroquinone bis-trimethylsilylether were obtained by nucleophilic displacement polycondensation with high molecular

On/off electrochemical switches based on quinone-bisketals

The synthesis and anodic oxidation of a variety of 2,5-diaryl or dialkynylaryl substituted 1,4-dialkoxybenzenes to quinone bisketals is described. The study of the X-ray structures and electrochemical and spectroscopic properties evidenced that these pair