The Silane,ethenyldiethoxymethyl-, with the CAS registry number 5507-44-8 and EINECS registry number 226-850-4, has the systematic name of ethenyl(diethoxy)methylsilane. And the molecular formula of the chemical is C₇H₁₆O₂Si. What's more, it is always used to product silicone intermediates and high malecular compound.

The characteristics of Silane,ethenyldiethoxymethyl- are as followings: (1)ACD/LogP: 3.73; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.73; (4)ACD/LogD (pH 7.4): 3.73; (5)ACD/BCF (pH 5.5): 404.24; (6)ACD/BCF (pH 7.4): 404.24; (7)ACD/KOC (pH 5.5): 2555.27; (8)ACD/KOC (pH 7.4): 2555.27; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 18.46 Å²; (13)Index of Refraction: 1.409; (14)Molar Refractivity: 46.41 cm³; (15)Molar Volume: 187.6 cm³; (16)Polarizability: 18.39×10^-24cm³; (17)Surface Tension: 20.2 dyne/cm; (18)Density: 0.854 g/cm³; (19)Flash Point: 17.8 °C; (20)Enthalpy of Vaporization: 35.52 kJ/mol; (21)Boiling Point: 133 °C at 760 mmHg; (22)Vapour Pressure: 10.6 mmHg at 25°C.

Preparation of Silane,ethenyldiethoxymethyl-: This chemical can be prepared by ethyne and diethoxy-methyl-silane. The reaction will need reagent RhH(PPh₃)₄, and the menstruum benzene. The reaction time is 2 hours, and the yield is about 89%. 

You should be cautious while dealing with this chemical. It is a kind of highly flammable chemical which irritates to eyes, respiratory system and skin, and it may also cause sensitization by skin contact. Therefore, you had better take the following instructions: Keep away from sources of ignition - No smoking; Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O(CC)[Si](OCC)(/C=C)C
(2)InChI: InChI=1/C7H16O2Si/c1-5-8-10(4,7-3)9-6-2/h7H,3,5-6H2,1-2,4H3
(3)InChIKey: MBGQQKKTDDNCSG-UHFFFAOYAA