This chemical is called Magnesium dioxide, and it's also named as Magnesium peroxide. With the molecular formula of MgO₂, its molecular weight is 56.31. The CAS registry number of this chemical is14452-57-4. Additionally, its product categories are Oxidation; Peroxides; Synthetic Reagents.

Other characteristics of the Magnesium dioxide can be summarised as followings: (1)ACD/LogP: -0.43; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.42; (4)ACD/LogD (pH 7.4): -0.42; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 2; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 1; (10)Polar Surface Area: 40.46 Å²; (11)Enthalpy of Vaporization: 45.09 kJ/mol; (12)Boiling Point: 150.2 °C at 760 mmHg; (13)Vapour Pressure: 1.48 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following: This chemical causes burns and may cause fire if ontacts with combustible material. Please keep it away from combustible material and wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. 

You can still convert the following datas into molecular structure: 
1.SMILES: [Mg+2].[O-][O-]
2.InChI: InChI=1/Mg.O2/c;1-2/q+2;-2
3.InChIKey: SPAGIJMPHSUYSE-UHFFFAOYAN