The 1,3-Bis(chloromethyldimethylsiloxy)benzene, with the CAS registry number 203785-58-4, is also known as [1,3-Phenylenebis(oxy)]bis[(chloromethyl)(dimethyl)silane]. This chemical's molecular formula is C₁₂H₂₀Cl₂O₂Si₂ and molecular weight is 323.36. What's more, its systematic name is called [Benzene-1,3-diylbis(oxy)]bis[(chloromethyl)(dimethyl)silane].

Physical properties about 1,3-Bis(chloromethyldimethylsiloxy)benzene are: (1) ACD/LogP: -2.99; (2) # of Rule of 5 Violations: 0; (3) ACD/LogD (pH 5.5): -2.99; (4) ACD/LogD (pH 7.4): -2.99; (5) ACD/BCF (pH 5.5): 1; (6) ACD/BCF (pH 7.4): 1; (7) ACD/KOC (pH 5.5): 1; (8) ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10) #H bond donors: 0; (11) #Freely Rotating Bonds: 6; (12) Polar Surface Area: 18.46 Å²; (13) Index of Refraction: 1.484; (14) Molar Refractivity: 85.27 cm³; (15) Molar Volume: 297.7 cm³; (16) Surface Tension: 26.4 dyne/cm; (17) Density: 1.086 g/cm³; (18) Flash Point: 110.3 °C; (19) Enthalpy of Vaporization: 51.28 kJ/mol; (20) Boiling Point: 294.6 °C at 760 mmHg; (21) Vapour Pressure: 0.00283 mmHg at 25 °C; (22) Melting Point: <20°C.

When you are dealing with this chemical, you should be very careful. This chemical is irritating to eyes, respiratory system and skin. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: ClC[Si](Oc1cccc(O[Si](CCl)(C)C)c1)(C)C
(2) InChI: InChI=1/C12H20Cl2O2Si2/c1-17(2,9-13)15-11-6-5-7-12(8-11)16-18(3,4)10-14/h5-8H,9-10H2,1-4H3
(3) InChIKey: WDQWZASYSJFRSG-UHFFFAOYAC