Cyclohexanone peroxide

CAS Number

12262-58-7

Molecular Formula

C12H22O5

Molecular Weight

246.3

EINECS Number

235-527-7

MDL Number

MFCD00046336

BRN Number

3918510

Last Updated

7/31/2025

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

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