The Rhenium oxide, with CAS registry number 1314-68-7, has the systematic name of trioxo-(trioxorheniooxy)rhenium. This chemical is a kind of yellow to green powder. And the chemical formula of this chemical is O₇Re₂. This chemical is used as catalyst and oxidant. What's more, its EINECS is 215-241-9.

Physical properties of Rhenium oxide: (1)#H bond acceptors: 7; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 2; (4)Polar Surface Area: 111.65 Å².

When you are using this chemical, please be cautious about it as the following:
The Rhenium oxide may cause burns. When use it, wear suitable protective clothing, gloves and eye/face protection. After using it, take off immediately all contaminated clothing. If contact with eyes, rinse immediately with plenty of water and seek medical advice. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

You can still convert the following datas into molecular structure:
(1)SMILES: O=[Re](=O)(=O)O[Re](=O)(=O)=O
(2)InChI: InChI=1/7O.2Re/rO7Re2/c1-8(2,3)7-9(4,5)6
(3)InChIKey: NBGOSNNAAHDRLK-XGOFLDPAAU
(4)Std. InChI: InChI=1S/7O.2Re
(5)Std. InChIKey: NBGOSNNAAHDRLK-UHFFFAOYSA-N