The CAS register number of Benzene,[(trimethylsilyl)seleno]- is 33861-17-5. It also can be called as (Phenylselenyl)trimethylsilane and the systematic name about this chemical is trimethyl(phenylselanyl)silane. The molecular formula about this chemical is C₉H₁₄SeSi and the molecular weight is 229.25.

Physical properties about Benzene,[(trimethylsilyl)seleno]- are: (1)ACD/LogP: 4.20; (2)ACD/LogD (pH 5.5): 4.2; (3)ACD/LogD (pH 7.4): 4.2; (4)ACD/BCF (pH 5.5): 922.07; (5)ACD/BCF (pH 7.4): 922.07; (6)ACD/KOC (pH 5.5): 4610.82; (7)ACD/KOC (pH 7.4): 4610.82; (8)#Freely Rotating Bonds: 2; (9)Flash Point: 94.5 °C; (10)Enthalpy of Vaporization: 45.04 kJ/mol; (11)Boiling Point: 232.7 °C at 760 mmHg; (12)Vapour Pressure: 0.0884 mmHg at 25 °C.

Preparation: this chemical can be prepared by chloro-trimethyl-silane and diphenyl-diselane. This reaction will need reagent of Na and THF.

Uses of Benzene,[(trimethylsilyl)seleno]-: it can be used to produce trimethyl-(3-phenylselanyl-propoxy)-silane with oxetane. This reaction will need catalytic agent of ZnI₂ and solvent of CH₂Cl₂. The reaction time is 54 hours with reaction temperature of 35 °C. The yield is about 80%.

When you are using this chemical, please be cautious about it as the following:
This chemical is very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. There is danger of cumulative effects. It is toxic by inhalation and if swallowed.  It is possible risk of harm to the unborn child. When using, do not eat, drink or smoke. If you want to use this chemical, refer to special instructions / safety data sheets. When you are using it, avoid release to the environment. This material and its container must be disposed of as hazardous waste. 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.)

You can still convert the following datas into molecular structure:
(1)SMILES: [Se](c1ccccc1)[Si](C)(C)C
(2)InChI: InChI=1/C9H14SeSi/c1-11(2,3)10-9-7-5-4-6-8-9/h4-8H,1-3H3
(3)InChIKey: MRRIPSZDPMMQEO-UHFFFAOYAB
(4)Std. InChI: InChI=1S/C9H14SeSi/c1-11(2,3)10-9-7-5-4-6-8-9/h4-8H,1-3H3
(5)Std. InChIKey: MRRIPSZDPMMQEO-UHFFFAOYSA-N