CAS: 1889-67-4
Molecular Formula: C18H22
Molecular Weight: 238.37
EINECS: 217-568-2
Synonyms: 1,1′-[1,1,2,2-Tetramethyl-1,2-ethandiyl]bis[benzene]; 1,1’-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis-benzen; 1,2-Diphenyltetramethylethane; 2,3-Diphenyl-2,3-dimethylbutane; alpha,alpha’-Dicumyl; Bibenzyl, alpha,alpha,alpha’,alpha’-tetramethyl-
2,3-Dimethyl-2,3-diphenylbutane (CAS 1889-67-4) is a stable organic compound with the molecular formula C₁₈H₂₂ and a molecular weight of 238.37 g/mol. It usually appears as a white to light-yellow crystalline solid, insoluble in water but soluble in aromatic hydrocarbons and other organic solvents.
Due to its ability to generate free radicals at elevated temperatures, this compound is widely used in polymerization, flame-retardant systems, and fine chemical synthesis. As a professional 2,3-Dimethyl-2,3-diphenylbutane supplier and manufacturer, we provide high-purity products for laboratory research, industrial production, and customized applications.
| Item | Specification |
| Boiling point | 335.97°C (estimate) |
| Density | 0.9859 (estimate) |
| Storage conditions | Sealed in dry,2-8°C |
| MF | C18H22 |
| MW | 238.37 |
| Refractivity | 1.5413 (estimate) |
Flame Retardant Synergist
Applied in expandable polystyrene (EPS) and other polymer systems, 2,3-Dimethyl-2,3-diphenylbutane works as a synergist to reduce the required amount of halogen flame retardants while maintaining high fire resistance.
Polymerization Additive
Thanks to its radical-forming capability at high temperatures, it is used in suspension polymerization, graft copolymerization, and crosslinking reactions to enhance reaction efficiency.
Organic Synthesis Intermediate
Serves as an intermediate in fine chemicals and specialty materials synthesis, suitable for both research and industrial-scale production.
Polymer Modification
Used in polymer modification processes to improve stability and overall performance of the end products.
High purity, suitable for both R&D and large-scale manufacturing
Reliable supply chain from trusted CAS 1889-67-4 manufacturer
Flexible packaging and customized technical support available
Usually packed in 25kg/drum,and also can be do customized package.
