The Benzene seleninic anhydride, with CAS registry number 17697-12-0, belongs to the following product categories: (1)Pharmaceutical Intermediates; (2)Building Blocks; (3)Organic Building Blocks; (4)Selenium Compounds. It has the systematic name of 1,3-diphenyldiselenoxane 1,3-dioxide. This chemical is a kind of white to light beige powder.

Physical properties of Benzene seleninic anhydride: (1)#H bond acceptors: 3; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 43.37 Å²; (5)Flash Point: 65.2 °C; (6)Enthalpy of Vaporization: 40.32 kJ/mol; (7)Boiling Point: 184.2 °C at 760 mmHg; (8)Vapour Pressure: 1.02 mmHg at 25°C.

Uses of Benzene seleninic anhydride: it can be used to produce phenyl-indolyl-3 selenoxyde. This reaction will need solvents tetrahydrofuran, CH₂Cl₂. The reaction time is 18 hour(s) with reaction temperature of 20 ℃. The yield is about 76%.

When you are using this chemical, please be cautious about it as the following:
The Benzene seleninic anhydride is toxic by inhalation and if swallowed and has danger of cumulative effects. When using it, do not eat or drink and smoke. After contact with skin, wash immediately with plenty of soap-suds. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)  This chemical is very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment, so avoid release it to the environment. Refer to special instructions / safety data sheets. This material and its container must be disposed of as hazardous waste.

You can still convert the following datas into molecular structure:
(1)SMILES: O=[Se](O[Se](=O)c1ccccc1)c2ccccc2
(2)InChI: InChI=1/C12H10O3Se2/c13-16(11-7-3-1-4-8-11)15-17(14)12-9-5-2-6-10-12/h1-10H
(3)InChIKey: FHPZOWOEILXXBD-UHFFFAOYAQ
(4)Std. InChI: InChI=1S/C12H10O3Se2/c13-16(11-7-3-1-4-8-11)15-17(14)12-9-5-2-6-10-12/h1-10H
(5)Std. InChIKey: FHPZOWOEILXXBD-UHFFFAOYSA-N