The Trisiloxane,1,5-dichloro-1,1,3,3,5,5-hexamethyl-, with the CAS registry number 3582-71-6 and EINECS registry number 222-707-5, has the systematic name of 1,5-dichloro-1,1,3,3,5,5-hexamethyltrisiloxane. It is a kind of clear colorless liquid, and belongs to the following product categories: Monochlorosilanes; Si (Classes of Silicon Compounds); Si-Cl Compounds; Siloxanes; Si-O Compounds. And the molecular formula of the chemical is C₆H₁₈Cl₂O₂Si₃.

The characteristics of Trisiloxane,1,5-dichloro-1,1,3,3,5,5-hexamethyl- are as followings: (1)ACD/LogP: 6.75; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 6.75; (4)ACD/LogD (pH 7.4): 6.75; (5)ACD/BCF (pH 5.5): 79937.66; (6)ACD/BCF (pH 7.4): 79937.66; (7)ACD/KOC (pH 5.5): 112452.5; (8)ACD/KOC (pH 7.4): 112452.5; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 18.46 Å²; (13)Index of Refraction: 1.425; (14)Molar Refractivity: 69.18 cm³; (15)Molar Volume: 270.2 cm³; (16)Polarizability: 27.42×10^-24cm³; (17)Surface Tension: 19 dyne/cm; (18)Density: 1.026 g/cm³; (19)Flash Point: 53.3 °C; (20)Enthalpy of Vaporization: 40.3 kJ/mol; (21)Boiling Point: 184 °C at 760 mmHg; (22)Vapour Pressure: 1.02 mmHg at 25°C. 

Uses of Trisiloxane,1,5-dichloro-1,1,3,3,5,5-hexamethyl-: It can react with butyllithium to produce 1,5-Dibutylhexamethyltrisiloxan. This reaction will need the menstruum diethyl ether. The reaction time is 2.5 hours with temperature of -78°C, and the yield is about 100%.   

You should be cautious while dealing with this chemical. It may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection; After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer); If in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Cl[Si](O[Si](O[Si](Cl)(C)C)(C)C)(C)C
(2)InChI: InChI=1/C6H18Cl2O2Si3/c1-11(2,7)9-13(5,6)10-12(3,4)8/h1-6H3
(3)InChIKey: GJIYNWRLGOMDEX-UHFFFAOYAR