34074-95-8

Basic information

• Product Name: 2,2'-(1,4-phenylenediisopropylidene)bis[4,6-xylenol]
• Synonyms: 2,2'-(1,4-phenylenediisopropylidene)bis[4,6-xylenol];2,2'-[(1,4-Phenylene)bis(1-methylethane-1,1-diyl)]bis[4,6-dimethylphenol]
• CAS NO: 34074-95-8
• Molecular Formula: C₂₈H₃₄O₂
• Molecular Weight: 402.56836
• EINECS: 251-819-7
• Mol File: 34074-95-8.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 517.4°Cat760mmHg
• Flash Point: 218°C
• Appearance: /
• Density: 1.065g/cm³
• CAS DataBase Reference: 2,2'-(1,4-phenylenediisopropylidene)bis[4,6-xylenol](CAS DataBase Reference)
• NIST Chemistry Reference: 2,2'-(1,4-phenylenediisopropylidene)bis[4,6-xylenol](34074-95-8)
• EPA Substance Registry System: 2,2'-(1,4-phenylenediisopropylidene)bis[4,6-xylenol](34074-95-8)

Safety Data

• Hazardous Substances Data: 34074-95-8(Hazardous Substances Data)

Usage

Type of compound

Phenolic antioxidant

Uses

Stabilizer for polymers and plastics, production of rubber and adhesives

Known for

High heat and oxidation resistance, increasing longevity and durability of plastic and rubber materials

Controversy

Potential health risks due to estrogen-mimicking properties and possible link to certain health issues

Ongoing research and debate

Safety and potential regulatory restrictions in various countries.

Upstream product

• 2948-46-1 α,α,α',α'-tetramethyl-1,4-benzenedimethanol 
• 105-67-9 2,4-Xylenol 

Relevant articles and documents

Carbon Dioxide Activation by a Uranium(III) Complex Derived from a Chelating Bis(aryloxide) Ligand

The new dianionic ligand C6H4{p-C(CH3)2C6H2Me2O-}2 (=p-Me2bp), featuring two aryloxide donors and a central arene ring, has been synthesized and used to prepare the mixed-ligand U(III) compound [U(Cp?)(p-Me2bp)], which exhibits an η6 interaction with the uranium center. Reductive activation of CO2 was investigated using [U(Cp?)(p-Me2bp)] in supercritical CO2, which gave a dinuclear uranium carbonate complex, {U(Cp?)(p-Me2bp)}2(μ-η1:η2-CO3), cleanly and selectively. Reactivity studies in conventional solvents using lower pressures of CO2 showed the formation of a rare U(IV) oxalate complex, {U(Cp?)(p-Me2bp)}2(μ-η2:η2-C2O2), alongside {U(Cp?)(p-Me2bp)}2(μ-η1:η2-CO3). The relative ratio of the last two products is temperature dependent: at low temperatures (-78 °C) oxalate formation is favored, while at room temperature the carbonate is the dominant product. The U(IV) iodide [U(Cp?)(p-Me2bp)I] was also synthesized and used as part of an electrochemical study, the results of which showed that [U(Cp?)(p-Me2bp)] has a UIV/UIII redox couple of -2.18 V vs FeCp2+/0 as well as a possible electrochemically accessible UIII/UII reduction process at -2.56 V vs FeCp2+/0.