1,7-Dichlorooctamethyltetrasiloxane

The Tetrasiloxane,1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-, with the CAS registry number 2474-02-4, is also known as 1,7-Dichloro-octamethyltetrasiloxane. It belongs to the product categories of Organometallic Reagents; Organosilicon; Siloxanes. Its EINECS registry number is 219-597-6. This chemical's molecular formula is C₈H₂₄Cl₂O₃Si₄ and molecular weight is 351.52. Its IUPAC name is called chloro-[[[chloro(dimethyl)silyl]oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilane.

Physical properties of Tetrasiloxane,1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-: (1)ACD/LogP: 8.54; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 8.54; (4)ACD/LogD (pH 7.4): 8.54; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 1052450.13; (8)ACD/KOC (pH 7.4): 1052450.13; (9)#H bond acceptors: 3; (10)#Freely Rotating Bonds: 6; (11)Index of Refraction: 1.428; (12)Molar Refractivity: 88.91 cm³; (13)Molar Volume: 345.3 cm³; (14)Surface Tension: 19.1 dyne/cm; (15)Density: 1.017 g/cm³; (16)Flash Point: 87.8 °C; (17)Enthalpy of Vaporization: 46.42 kJ/mol; (18)Boiling Point: 246.6 °C at 760 mmHg; (19)Vapour Pressure: 0.0421 mmHg at 25°C.

Uses of Tetrasiloxane,1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-: it can be used to produce 1-chloro-1,1,3,3,5,5,7,7,7-nonamethyltetrasiloxane by heating. This reaction will need reagent Et₃N and solvent diethyl ether with reaction time of 1 hour. The yield is about 64%.

When you are using this chemical, please be cautious about it as the following:
This chemical may destroy living tissue on contact. It may also cause burns. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C[Si](C)(O[Si](C)(C)O[Si](C)(C)Cl)O[Si](C)(C)Cl
(2)InChI: InChI=1S/C8H24Cl2O3Si4/c1-14(2,9)11-16(5,6)13-17(7,8)12-15(3,4)10/h1-8H3
(3)InChIKey: UHRAUGIQJXURFE-UHFFFAOYSA-N