Cumyl hydroperoxide (CAS 80-15-9)
Cumyl hydroperoxide (CAS 80-15-9) is an organic peroxide compound with molecular formula C9H12O2 and molecular weight 152.19. Also known as 1-mmethyl-1-phenylethylhydroperoxide, A,A-DIMETHYLBENZYL HYDROPEROXIDE, ALPHA,ALPHA-DIMETHYLBENZYL HYDROPEROXIDE. It is commonly used as a crosslinking agent or polymerization initiator in polymer processing in oily liquid form. Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 61 products from 13 verified manufacturers.
CAS Number
80-15-9
Molecular Formula
C9H12O2
Molecular Weight
152.19
EINECS Number
201-254-7
MDL Number
MFCD00002129
BRN Number
1751995
Chemical Name
Cumyl hydroperoxide
Last Updated
7/29/2025
Aliases
Appearance
Colorless to pale yellow oily liquid with a pungent odor
Appearance State
Oily liquid. Slightly soluble in water, soluble in ethanol, acetone, etc.
Color
Colorless
Odor
Pungent odor
Form
Oily Liquid
Melting Point
-30
Boiling Point
48-49 at 0.2 mmHg
Flash Point
79.4
Density
1.05 @ 25 °C
Vapor Density
5.4 (air=1)
Vapor Pressure
<0.03 mmHg @ 20°C
Refractive Index
1.5230 (20°C D)
LogP Value
1.6 @ 25 °C
Merck Index
2724
Solubility
Slightly soluble in water, readily soluble in ethanol, acetone.
Water Solubility
slightly soluble
Solubility Detail
Chloroform (soluble), ethyl acetate (slightly soluble), methanol (soluble).
Storage Conditions
Store at 2-8°C.
InChI Key
SASEGFLOKRJADN-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
O
Risk Codes
R7, R10, R21/22, R23, R34, R48/20/22, R51/53
UN Number
UN 3109
IARC Classification
第 2B 组
WGK Germany
3
RTECS Number
MX2450000
Auto-ignition Temperature
ca. 430
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29096000
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
AIHA WEEL C: 1 ppm (皮肤)
Immediately Dangerous to Life or Health (IDLH)
150 ppm
Hazard Statements
H242,H302+H312,H304,H314,H331,H335,H373,H411Precautionary Statements
P210,P280,P301+P330+P331,P303+P361+P353,P304+P340+P310,P305+P351+P338,P370+P378Safety Statements
S3/7, S14, S26, S36/37/39, S45, S50, S61
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