2,3-Dimethyl-2,3-diphenylbutane (CAS 1889-67-4)
2,3-Dimethyl-2,3-diphenylbutane (CAS 1889-67-4) is an organic peroxide compound with molecular formula C18H22 and molecular weight 238.37. Also known as 1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bisbenzene, 1,1'-(1,1,2,2-Tetramethylethylene)dibenzene, 2,3-DIMETHYL-2,3-DIPHENYLBUTANE. It typically appears in liquid form.
2,3-Dimethyl-2,3-diphenylbutane (CAS number: 1889-67-4) is an high-purity chemical raw material that features precise half-life control characteristics, providing a dual guarantee of safety and efficiency for continuous production lines. It is commonly used to produce high-transmittance acrylic resins and medical-grade polymers. Its exceptional chemical characteristics give it an important position in modern industrial formulations, providing enterprises with highly efficient product solutions.
Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 2 products from 2 verified manufacturers.
CAS 1889-67-4 is also known as:
- 1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bisbenzene
- 1,1'-(1,1,2,2-Tetramethylethylene)dibenzene
- 2,3-DIMETHYL-2,3-DIPHENYLBUTANE
- (1,1,2-Trimethyl-2-phenylpropyl)benzene
- 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
- Bibenzyl, alpha,alpha,alpha',alpha'-tetramethyl-
- Butane, 2,3-dimethy-2,3-diphenyl-
- Butane, 2,3-dimethyl-2,3-diphenyl-
- Dicumyl
CAS Number
1889-67-4
Molecular Formula
C18H22
Molecular Weight
238.37
EINECS Number
217-568-2
MDL Number
MFCD00053713
BRN Number
1769605
Chemical Name
2,3-Dimethyl-2,3-diphenylbutane
Last Updated
7/30/2025
Aliases
Appearance
Colorless liquid
Appearance State
Liquid. Insoluble in water.
Color
White to Light Yellow
Odor
No distinct odor
Form
Liquid
Melting Point
90-110
Boiling Point
336.0 (predicted)
Flash Point
142.7
Density
0.986 (predicted)
Vapor Density
>1 (air=1)
Vapor Pressure
0.015 Pa @ 20°C
Refractive Index
1.5413 (est.)
LogP Value
6.68 @ 25 °C
Merck Index
Not Listed
Solubility
Insoluble in water
Water Solubility
insoluble in water
Solubility Detail
Insoluble in water, soluble in most organic solvents.
Storage Conditions
Store in a dry, cool place, avoid high temperatures and direct sunlight.
InChI Key
HGTUJZTUQFXBIH-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Warning
Hazard Symbols
O
Risk Codes
R7, R10, R20
UN Number
UN 3105
IARC Classification
Not Classified
WGK Germany
2
RTECS Number
-
Auto-ignition Temperature
200
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29029090
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H226Precautionary Statements
P210, P220, P234, P264, P280, P302+P352, P305+P351+P338, P332+P313, P337+P313, P362, P370+P378, P403+P235, P411, P420, P501Safety Statements
S24/25, S36/37
2 verified suppliers offering 2 products for 2,3-Dimethyl-2,3-diphenylbutane (CAS 1889-67-4). Compare equivalent grades across brands (e.g., Trigonox vs Luperox) by assay, physical form, and availability from trusted manufacturers and distributors worldwide.
| Company Name | Product Model | Assay | Physical Form | Status |
|---|---|---|---|---|
| Nouryon Chemicals International B.V. | Perkadox 30-PD | Powder | Imported | |
| Pergan GmbH | PEROXAN PERGASAFE FR | 95% | Powder | Imported |
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