The Trimethyl 1,1,3,3,5,5,7,7-octamethyl-7-vinyltetrasiloxanyl orthosilicate, with the CAS registry number 144739-99-1, is also known as Silicic acid (H₄SiO₄), 7-ethenyl-1,1,3,3,5,5,7,7-octamethyltetrasiloxanyl trimethyl ester. This chemical's molecular formula is C₁₃H₃₆O₇Si₅ and molecular weight is 444.8482. Its IUPAC name is called 7-ethenyl-1,1,3,3,5,5,7,7-octamethyltetrasiloxanyl trimethyl orthosilicate.

Physical properties of Trimethyl 1,1,3,3,5,5,7,7-octamethyl-7-vinyltetrasiloxanyl orthosilicate: (1)ACD/LogP: 6.66; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 10; (4)ACD/LogD (pH 7.4): 10; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 9119969; (8)ACD/KOC (pH 7.4): 9119969; (9)#H bond acceptors: 7; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 12; (12)Index of Refraction: 1.424; (13)Molar Refractivity: 117.804 cm³; (14)Molar Volume: 461.437 cm³; (15)Surface Tension: 19.674 dyne/cm; (16)Density: 0.964 g/cm³; (17)Flash Point: 132.094 °C; (18)Enthalpy of Vaporization: 52.921 kJ/mol; (19)Boiling Point: 310.369 °C at 760 mmHg; (20)Vapour Pressure: 0.001 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O([Si](\C=C)(C)C)[Si](O[Si](O[Si](O[Si](OC)(OC)OC)(C)C)(C)C)(C)C
(2)InChI: InChI=1/C13H36O7Si5/c1-13-21(5,6)17-22(7,8)18-23(9,10)19-24(11,12)20-25(14-2,15-3)16-4/h13H,1H2,2-12H3
(3)InChIKey: YIPGODHCONPUNO-UHFFFAOYAT