The 1,3-Bis(4-methacryloxybutyl)tetramethyldisiloxane, with the CAS registry number 70877-11-1, is also known as 2-Propenoic acid, 2-methyl-, (1,1,3,3-tetramethyl-1,3-disiloxanediyl)di-4,1-butanediyl ester. This chemical's molecular formula is C₂₀H₃₈O₅Si₂ and molecular weight is 414.68. What's more, its systematic name is (1,1,3,3-Tetramethyldisiloxane-1,3-diyl)dibutane-4,1-diyl bis(2-methylprop-2-enoate).

Physical properties of 1,3-Bis(4-methacryloxybutyl)tetramethyldisiloxane are: (1)ACD/LogP: 8.12; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 8.12; (4)ACD/LogD (pH 7.4): 8.12; (5)ACD/BCF (pH 5.5): 865934.88; (6)ACD/BCF (pH 7.4): 865934.88; (7)ACD/KOC (pH 5.5): 618901.06; (8)ACD/KOC (pH 7.4): 618901.06; (9)#H bond acceptors: 5; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 16; (12)Polar Surface Area: 61.83 Å²; (13)Index of Refraction: 1.45; (14)Molar Refractivity: 116.57 cm³; (15)Molar Volume: 433.2 cm³; (16)Polarizability: 46.21×10^-24 cm³; (17)Surface Tension: 26.7 dyne/cm; (18)Density: 0.957 g/cm³; (19)Flash Point: 172.9 °C; (20)Enthalpy of Vaporization: 67.43 kJ/mol; (21)Boiling Point: 420.4 °C at 760 mmHg; (22)Vapour Pressure: 2.82E-07 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OCCCC[Si](O[Si](CCCCOC(=O)\C(=C)C)(C)C)(C)C)\C(=C)C
(2)InChI: InChI=1S/C20H38O5Si2/c1-17(2)19(21)23-13-9-11-15-26(5,6)25-27(7,8)16-12-10-14-24-20(22)18(3)4/h1,3,9-16H2,2,4-8H3
(3)InChIKey: DFACZWMAJBYXEY-UHFFFAOYSA-N