2943-62-6

Basic information

• Product Name: chloropentamethyldisiloxane
• Synonyms: chloropentamethyldisiloxane;1-Chloro-1,1,3,3,3-pentamethylpropanedisiloxane;Chlorodimethyl(trimethylsilyloxy)silane
• CAS NO: 2943-62-6
• Molecular Formula: C₅H₁₅ClOSi₂
• Molecular Weight: 182.796
• EINECS: 220-938-6
• Mol File: 2943-62-6.mol
• Article Data: 23

Chemical Properties

• Boiling Point: 115.9°C at 760 mmHg
• Flash Point: 22.1°C
• Appearance: /
• Density: 0.912g/cm³
• Vapor Pressure: 22.1mmHg at 25°C
• Refractive Index: 1.406
• CAS DataBase Reference: chloropentamethyldisiloxane(CAS DataBase Reference)
• NIST Chemistry Reference: chloropentamethyldisiloxane(2943-62-6)
• EPA Substance Registry System: chloropentamethyldisiloxane(2943-62-6)

Safety Data

• Hazardous Substances Data: 2943-62-6(Hazardous Substances Data)

Usage

InChI:InChI=1/C5H15ClOSi2/c1-8(2,3)7-9(4,5)6/h1-5H3

Upstream product

• 56428-93-4 pentamethyldisiloxanol 
• 1438-82-0 1,1,1,3,3-pentamethyl-1,3-disiloxane 
• 107-05-1 3-chloroprop-1-ene 
• 107-46-0 Hexamethyldisiloxane 
• 75-77-4 chloro-trimethyl-silane 
• 2750-45-0 1,1,1-trichloro-3,3,3-trimethyl-disiloxane 
• 865-76-9 decamethyltetrasilane 
• 106710-91-2 5,5-Dimethyl-1,4-bis(tri-tert-butylsilyl)-1,2,3,4-tetraaza-5-sila-2-cyclopenten 
• 75-78-5 dimethylsilicon dichloride 
• 1066-40-6 Trimethylsilanol 
• 80431-36-3 2,2-Dimethyl-4,4-diphenyl-1,3,3-tris(trimethylsilyl)-1-aza-2-silacyclobutan 
• 107-51-7 octamethyltrisiloxabe 
• 1560-28-7 pentamethylchlorodisilane 
• 2401-73-2 1,1,3,3-tetramethyl-1,3-dichlorodisiloxane 

Downstream Products

• 4459-30-7 1,1,3,5,5-pentamethyltrisiloxane 
• 31397-48-5 Me₃SiCH₂SiMe₂OSiMe₂H 
• 1234899-30-9 C₁₄H₂₈O₂Si₃ 
• 1234899-21-8 1-(1-heptamethyltrisiloxanyl)-4-{4-ethynyl-2,6-bis(hydroxymethyl)-1-phenoxymethyl}benzene 
• 1234899-31-0 1-(1-heptamethyltrisiloxanyl)-4-{4-(trimethylsiliylethynyl)-2,6-bis(hydroxymethyl)-1-phenoxymethyl}benzene 
• 1234899-29-6 1-heptamethyltrisiloxanyl-4-bromomethylbenzene 
• 541-01-5 hexadecamethylheptasiloxane 
• 556-70-7 docosamethyl-decasiloxane 
• 107-51-7 octamethyltrisiloxabe 
• 4342-25-0 1,2-Bis(trimethylsiloxy)-1,1,2,2-tetramethyl-disilan 
• 16029-98-4 trimethylsilyl iodide 
• 556-67-2 octamethylcyclotetrasiloxane 
• 18297-87-5 1-chloroheptamethyltrisiloxane 
• 14415-31-7 1-chloro-1,1,3,3,5,5,7,7,7-nonamethyltetrasiloxane 

Relevant articles and documents

New achiral phenylacetylene monomers having an oligosiloxanyl group most suitable for helix-sense-selective polymerization and for obtaining good optical resolution membrane materials

To develop new phenylacetylene monomers more suitable for helix-sense-selective polymerization (HSSP) we reported previously and to improve the efficiency of the HSSP and membrane performance of the resulting polymers, novel phenylacetylenes having a flexible oligosiloxanyl group (SnBDHPA)together with the other related three series of monomers were synthesized and polymerized by using a chiral catalytic system and enantioselectivity in permeation of the membranes from the resulting chiral polymers were examined. SnBDHPA was the most suitable for the HSSP and the CD absorptions (G values) of poly- (SnBDHPA) were stronger and more stable than those of the corresponding polymers having rigid alkyl groups. The polymers could be fabricated to flexible self-supporting membranes by using solvent-casting method. In addition, enantioselectivity in permeation of one of poly(SnBDHPA) membranes was much higher than that of a poly(phenylacetylene) membrane having alkyl groups. This was because the polymers having oligosiloxane groups had high regularity of structures, i.e., chemical structures of the macromolecules such as one handedness and high order structures such as columnar contents in the membranes, and the membranes were flexible and had almost no defects. These good properties as optical resolution membrane materials were caused by flexibility, hydrophobicity, and bulkiness of the oligosiloxane chains. S3BDHPA having a trisiloxanyl group was found to be the best monomer for the HSSP and for obtaining good optical resolution membrane materials.

Surface Active Organosilicone Compounds

The present invention relates to new organodisilanes or carbodisilanes, a process for manufacturing the same and their use, in particular, as surface active agents, especially as spreading agents.

Reaction of the dioxane complex of dichlorogermylene with siloxanes

The major organogermanium compounds formed by reactions of the dioxane complex of dichlorogermylene with hexamethyldisiloxane, octamethyltrisiloxane, and hexamethyltricyclotrisiloxane are bis(trimethylsiloxy)dichlorogermane, 3,3-dichloro-1,1,1,5,5,7,7,7-o