Melting point :39-41 °C (lit.)
Boiling point :130°C
Density :1.56 g/mL at 25 °C (lit.)
vapor density :9.3 (vs air)
vapor pressure :15.4 mm Hg ( 38 °C)
refractive index :1.5360
Flash point :>230 °F
storage temp. :2-8°C
solubility :Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
form :flakes
color :White
Water Solubility :insoluble
Hydrolytic Sensitivity :4: no reaction with water under neutral conditions
BRN :2056090
Stability :Reacts violently with reducing agents, heavy metals, concentrated acids, concentrated bases. May ignite organic materials on contact. May decompose violently upon exposure to sunlight or if heated. Incompatible with strong oxidizing agents.
LogP :5.6 at 25℃
CAS DataBase Reference :80-43-3(CAS DataBase Reference)
EPA Substance Registry System :Dicumyl peroxide (80-43-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H242 Heating may cause a fire Self-reactive substances and mixtures; and Organic peroxides Type C, D,Type E, F Type G Danger Warning P210, P220, P234, P280, P370+P378,P403+P235, P411, P420, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P235 Keep cool. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P308+P313 IF exposed or concerned: Get medical advice/attention. P370+P378 In case of fire: Use … for extinction.