Equivalent Sibling CAS Numbers Notice
This substance (Main CAS 78-18-2) has equivalent sibling CAS numbers, isomers, or monomer-oligomer mixtures:12262-58-7(Cyclohexanone peroxide). For your sourcing and technical convenience, the platform has automatically merged and aggregated all verified suppliers and products from these sibling CAS numbers below.
Cyclohexanone peroxide (CAS 78-18-2)
Cyclohexanone peroxide (CAS 78-18-2) is an organic peroxide compound with molecular formula C12H22O5 and molecular weight 246.3. Also known as Cyclohexanone peroxi, CYCLOHEXANONE PEROXIDE, 1-HYDROPEROXYCYCLOHEXYL-1-HYDROXY CYCLOHEXYL PEROXIDE. It typically appears in liquid form.
It is commonly used as a crosslinking agent or polymerization initiator in polymer processing.
Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 6 products from 4 verified manufacturers.
CAS 78-18-2 is also known as:
- Cyclohexanone peroxi
- CYCLOHEXANONE PEROXIDE
- 1-HYDROPEROXYCYCLOHEXYL-1-HYDROXY CYCLOHEXYL PEROXIDE
- CHPO
CAS Number
78-18-2
Molecular Formula
C12H22O5
Molecular Weight
246.3
EINECS Number
201-100-9
MDL Number
MFCD00046336
BRN Number
3918510
Chemical Name
Cyclohexanone peroxide
Last Updated
7/31/2025
Aliases
Appearance
Colorless liquid
Appearance State
Liquid. Insoluble in water.
Color
Colorless to Light Yellow
Odor
Pungent odor
Form
Liquid
Melting Point
65-70
Boiling Point
288.0 (predicted)
Flash Point
157.5
Density
1.15 @ 20 °C
Vapor Density
>1 (air=1)
Vapor Pressure
2.16 Pa @ 25°C
Refractive Index
1.533
LogP Value
1.2 @ 29 °C
Merck Index
Not Listed
Solubility
Insoluble in water, soluble in alcohol, benzene, acetic acid, petroleum ether, acetone.
Water Solubility
9.3 g/L @ 25°C
Solubility Detail
Insoluble in water, soluble in alcohol, benzene, acetic acid, petroleum ether, acetone.
Storage Conditions
Store in a cool, dry, well-ventilated place, away from heat and ignition sources.
InChI Key
VNUFGFVFFMOURS-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
E
Risk Codes
R3, R7, R22, R34, R60, R61
UN Number
UN 2117/2118/2119/2896
IARC Classification
Not Classified
WGK Germany
3
RTECS Number
-
Auto-ignition Temperature
ca. 180
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29096000
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H240,H302,H314,H242Precautionary Statements
P210,P220,P234,P280,P370+P378,P403+P235,P411,P420,P501,P264,P270,P301+P312,P330,P501,P260,P264,P280,P301+P330+P331,P303+P361+P353,P363,P304+P340,P310,P321,P305+P351+P338,P405,P501Safety Statements
S3/7, S14, S26, S35, S36/37/39, S45, S53
4 verified suppliers offering 6 products for Cyclohexanone peroxide (CAS 78-18-2). 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 |
|---|---|---|---|---|
| Changzhou Tianma Group CO., Ltd | Tianma H | Paste | In Production | |
| Changzhou Tianma Group CO., Ltd | Tianma H-B | Liquid | In Production | |
| Changzhou Tianma Group CO., Ltd | Tianma L | Liquid | In Production | |
| Lanzhou Auxiliary Agent Plant Co., Ltd. | LQ-CYP | - | In Production | |
| GO YEN CHEMICAL INDUSTRIAL CO., LTD. | GYC CYP | 55% | Liquid | In Production |
| Nouryon Chemicals International B.V. | Cyclonox 1000P | Paste | Production Suspended |
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