3353-69-3

Basic information

• Product Name: 1,2-BIS(DICHLOROMETHYLSILYL)ETHANE
• Synonyms: 1,2-ethanediylbis[dichloromethyl-silan;1,2-ethanediylbis[dichloromethyl-Silane;1,2-BIS(DICHLOROMETHYLSILYL)ETHANE;1,2-BIS(METHYLDICHLOROSILYL)ETHANE;1,4-DIMETHYL-1,1,4,4-TETRACHLORO-1,2-DISILETHYLENE;1 4-DIMETHYL-1,1 4 4-TETRACHLORODISILETHYLENE;BIS(METHYLDICHLOROSILYL)ETHANE;ethane-1,2-diylbis[dichloromethylsilane]
• CAS NO: 3353-69-3
• Molecular Formula: C₄H₁₀Cl₄Si₂
• Molecular Weight: 256.11
• EINECS: 222-123-0
• Mol File: 3353-69-3.mol
• Article Data: 11

Chemical Properties

• Melting Point: 33-35 °C(lit.)
• Boiling Point: 208-210 °C(lit.)
• Flash Point: 195 °F
• Appearance: /solid
• Density: 1.263 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.286mmHg at 25°C
• Refractive Index: n20/D 1.476(lit.)
• Water Solubility: 1000g/L at 25℃
• CAS DataBase Reference: 1,2-BIS(DICHLOROMETHYLSILYL)ETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-BIS(DICHLOROMETHYLSILYL)ETHANE(3353-69-3)
• EPA Substance Registry System: 1,2-BIS(DICHLOROMETHYLSILYL)ETHANE(3353-69-3)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-28-36/37/39-45
• RIDADR: UN 2987 8/PG 2
• WGK Germany: 3
• F: 10-21
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 3353-69-3(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

InChI:InChI=1/C4H10Cl4Si2/c1-9(5,6)3-4-10(2,7)8/h3-4H2,1-2H3

Upstream product

• 75-54-7 Dichloromethylsilane 
• 74-86-2 acetylene 
• 124-70-9 Dichloromethylvinylsilane 
• 1719-58-0 Chlorodimethylvinylsilane 
• 1066-35-9 dimethylmonochlorosilane 
• 116-15-4 perfluoropropylene 
• 993-07-7 trimethylsilan 
• 754-05-2 ethenyltrimethylsilane 
• 104-76-7 2-Ethylhexyl alcohol 
• 115-19-5 2-methyl-but-3-yn-2-ol 

Downstream Products

• 4405-22-5 2,5-disilahexane 
• 22588-76-7 1,5-dimethyl-3,3,7,7-tetraphenylbicyclo<3.2.3>1,3,5,7-tetrasila-2,4,6,8-oxane 
• 18043-74-8 1,2-bis(methyldiethoxysilyl)ethane 

Relevant articles and documents

Synthesis of difunctional organooxasilacycloalkanes

2,8-Dichloro-2,4,4,6,6,8,10,10,12,12-decamethyl-5-carbacyclohexasiloxane, 4,7-dichloro-2,2,4,7-tetramethyl-1,3-dioxa-2,4,7-trisilacycloheptane, and 4,8-dichloro-2,2,4,8-tetramethyl-1,3-dioxa-2,4,8-trisilacyclooctane were prepared for the first time by heterofunctional condensation of 1,1,7,7-tetrachloro-1,3,3,5,5,7-hexamethyl-4-carbatetrasiloxane with 1,3-dihydroxy-1,1,3,3-tetramethyldisiloxane, of 2,2,5,5-tetrachloro-2,5-disilahexane with dihydroxydimethylsilane, and of 2,2,6,6-tetrachloro-2,6-disilaheptane with dihydroxydimethylsilane, respectively. Hydrolysis of the resulting compounds afforded the corresponding dihydroxy derivatives, and trans-isomers of some of these derivatives were isolated in individual form.

On the synthesis of siloxanes. XXIII. Synthesis and spectroscopic characterization of 2-functional 1,3-dioxa-2,4,7-trisilacycloheptanes

A series of 2-functional 1,3-dioxa-2,4,7-trisilacycloheptanes was synthesized and characterized by means of 29Si NMR spectroscopy, gas chromatography, high performance liquid chromatography and gas chromatography-mass spectrometry.The signals were assigned to the various configurational isomers.This assignment was confirmed by independent synthesis of individual isomers.The sequence of the NMR signals of the all-cis and trans-trans isomers required for the determination of stereochemistry was found to be the same as that of the respective cyclotrisiloxanes.Keywords: Cyclosiloxanes; Synthesis; Spectroscopic characterization