tert-Butyl peroxybenzoate (CAS 614-45-9)
tert-Butyl peroxybenzoate (CAS 614-45-9) is an organic peroxide compound with molecular formula C11H14O3 and molecular weight 194.23. Also known as PERBENZOIC ACID TERT-BUTYL ESTER, PEROXYBENZOIC ACID TERT-BUTYL ESTER, P-TERT-BUTYL PERBENZOATE. It is commonly used as a crosslinking agent or polymerization initiator in polymer processing in liquid form. Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 56 products from 18 verified manufacturers.
CAS Number
614-45-9
Molecular Formula
C11H14O3
Molecular Weight
194.23
EINECS Number
210-382-2
MDL Number
MFCD00008802
BRN Number
1769614
Chemical Name
tert-Butyl peroxybenzoate
Last Updated
7/29/2025
Aliases
Appearance
Colorless clear liquid with a faint aromatic odor
Appearance State
Liquid. Insoluble in water, soluble in ethanol, ether, etc.
Color
Light Yellow
Odor
Mild aromatic odor
Form
Liquid
Melting Point
8
Boiling Point
75-76 at 0.2 mmHg
Flash Point
62.8
Density
1.021 @ 25 °C
Vapor Density
6.7 (air=1)
Vapor Pressure
3.36 mmHg @ 50°C
Refractive Index
1.499 (20°C D lit.)
LogP Value
3.0 @ 25 °C
Merck Index
1552
Solubility
Insoluble in water, soluble in most organic solvents.
Water Solubility
immiscible with water
Solubility Detail
Solubility in water is 1.18 g/L, soluble in most organic solvents.
Storage Conditions
Store at 2-8°C.
InChI Key
GJBRNHKUVLOCEB-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
E
Risk Codes
R2, R7, R38
UN Number
UN 3103
IARC Classification
Not Classified
WGK Germany
2
RTECS Number
SD9450000
Auto-ignition Temperature
ca. 190
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29163900
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,H317,H332,H410Precautionary Statements
P210,P235,P273,P280,P304+P340+P312,P370+P378Safety Statements
S7, S14, S17, S36/37/39, S47
18 verified suppliers offering 56 products for tert-Butyl peroxybenzoate (CAS 614-45-9). Compare assay, physical form, and availability from trusted manufacturers and distributors worldwide.