The 1, 3-Bis[(acryloxymethyl)phenethyl]tetramethyldisiloxane, with the CAS registry number 140220-31-1, is also known as 2-Propenoic acid, (1, 1, 3, 3-tetramethyl-1, 3-disiloxanediyl)bis(2,1-ethanediyl-3, 1-phenylenemethylene) ester. This chemical's molecular formula is C₂₈H₃₈O₅Si₂ and molecular weight is 510.77. What's more, its systematic name is [3-[2-[[Dimethyl-[2-[3-(prop-2-enoyloxymethyl)phenyl]ethyl]silyl]oxy-dimethyl-silyl]ethyl]phenyl]methyl prop-2-enoate.

When you are using 1, 3-Bis[(acryloxymethyl)phenethyl]tetramethyldisiloxane, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. In addition, this chemical is harmful by inhalation, in contact with skin and if swallowed. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: C[Si](C)(CCc1cccc(c1)COC(=O)C=C)O[Si](C)(C)CCc2cccc(c2)COC(=O)C=C
(2) InChI: InChI=1/C28H38O5Si2/c1-7-27(29)31-21-25-13-9-11-23(19-25)15-17-34(3,4)33-35(5,6)18-16-24-12-10-14-26(20-24)22-32-28(30)8-2/h7-14,19-20H,1-2,15-18,21-22H2,3-6H3
(3) InChIKey: DXVGJWHFQLIBPO-UHFFFAOYAO