2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS 78-63-7)
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS 78-63-7) is an organic peroxide compound with molecular formula C16H34O4 and molecular weight 290.44. Also known as 2,5-BIS(T-BUTYLPEROXY)-2,5-DIMETHYLHEXANE, 2,5-BIS(TERT-BUTYLPEROXY)-2,5-DIMETHYLHEXANE, 2,5-DIMETHYL-2,5-BIS(TERT-BUTYLPEROXY)HEXANE. It typically appears in liquid form.
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS number: 78-63-7) is an high-performance chemical raw material that plays an irreplaceable crosslinking catalytic role in the fields of unsaturated polyester resins (UPR) and thermosetting plastics. It is especially common in the modification of foaming materials, EVA footwear, and various engineering plastics. 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 96 products from 16 verified manufacturers.
CAS 78-63-7 is also known as:
- 2,5-BIS(T-BUTYLPEROXY)-2,5-DIMETHYLHEXANE
- 2,5-BIS(TERT-BUTYLPEROXY)-2,5-DIMETHYLHEXANE
- 2,5-DIMETHYL-2,5-BIS(TERT-BUTYLPEROXY)HEXANE
- 2,5-DIMETHYL-2,5-DI(T-BUTYL-PEROXY)HEXANE
- 2,5-DIMETHYL-2,5-DI(TERT-BUTYLPEROXY)HEXANE
- Di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide
- 2,5-dimethyl-2,5-di(butylperoxy)hexane
- 2,5-dimethyl-2,5-di(t-butylperoxy)-hexan
- 2,5-Dimethyl-2,5-di(tert-butyl
- DHBP
CAS Number
78-63-7
Molecular Formula
C16H34O4
Molecular Weight
290.44
EINECS Number
201-128-1
MDL Number
MFCD00053715
BRN Number
1770335
Chemical Name
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
Last Updated
2/17/2025
Aliases
Appearance
Colorless to pale yellow liquid
Appearance State
Liquid. Insoluble in water, miscible with organic solvents.
Color
Colorless
Odor
Faint odor
Form
Liquid
Melting Point
6
Boiling Point
55-57 at 7 mmHg
Flash Point
>110 (c.c.)
Density
0.877 @ 25 °C
Vapor Density
>1 (air=1)
Vapor Pressure
0.002 Pa @ 20°C
Refractive Index
1.423 (20°C D lit.)
LogP Value
7.34 @ 20 °C
Merck Index
Not Listed
Solubility
Insoluble in water, soluble in most organic solvents.
Water Solubility
immiscible with water
Solubility Detail
Chloroform (soluble), methanol (slightly soluble).
Storage Conditions
Store indoors.
InChI Key
GDWKFOYVIWLCED-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
O
Risk Codes
R7, R8, R10, R36/38, R37/38, R41
UN Number
UN 3108
IARC Classification
Not Classified
WGK Germany
1
RTECS Number
MO1835000
Auto-ignition Temperature
ca. 250
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29012990
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H242,H315,H341Precautionary Statements
P210,P235,P280,P308+P313,P370+P378,P410Safety Statements
S3/7, S14, S17, S26, S36/37/39, S47
16 verified suppliers offering 96 products for 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS 78-63-7). Compare equivalent grades across brands (e.g., Trigonox vs Luperox) by assay, physical form, and availability from trusted manufacturers and distributors worldwide.
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