Empirical Formula of Dimethyl peroxide (CAS NO.690-02-8): C₂H₆O₂
Molecular Weight: 62.0678 g/mol
Index of Refraction: 1.321
Density: 0.835 g/cm³
Enthalpy of Vaporization: 21.45 kJ/mol
Vapour Pressure: 4870 mmHg at 25 °C 
Structure of Dimethyl peroxide (CAS NO.690-02-8):
               
IUPAC Name of Dimethyl peroxide (CAS NO.690-02-8): Methylperoxymethane
Canonical SMILES: COOC
InChI: InChI=1S/C2H6O2/c1-3-4-2/h1-2H3
InChIKey: SRXOCFMDUSFFAK-UHFFFAOYSA-N

Both the liquid and the vapor are powerful explosives extremely sensitive to heat or shock. Rough handling may cause ignition. When heated to decomposition it emits acrid smoke and fumes. See also PEROXIDES, INORGANIC; PEROXIDES, ORGANIC.

Dimethyl peroxide ,its cas register number is 690-02-8. It also can be called Peroxide, dimethyl ; and (Methylperoxy)methane .