Octaphenylcyclotetrasiloxane

Product Name: Octaphenylcyclotetrasiloxane
CAS No.: 546-56-5
Chemical Name: Octaphenylcyclotetrasiloxane
Synonyms: D 4ph;CO9817;CFS-565;Phenyl-D4;JACS-546-56-5;Co-Formula CFS-565;Octaphenylcyclotetrasilox;Ctaphenylcyclotetrasiloxane;OCTAPHENYLCYCLOTETRASILOXANE;octaphenyl-cyclotetrasiloxan
CBNumber: CB7434749
Molecular Formula: C48H40O4Si4
Formula Weight: 793.18
MOL File: 546-56-5.mol

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Octaphenylcyclotetrasiloxane Property

Melting point:: 196-198 °C(lit.)
Boiling point:: 334 °C
Density: 1.185
vapor pressure: 0Pa at 25℃
refractive index: 1.62
Flash point:: 200 °C
solubility: very faint turbidity in Toluene
form: solid
Specific Gravity: 1.185
color: White to Almost white
Water Solubility: insoluble
Hydrolytic Sensitivity: 1: no significant reaction with aqueous systems
BRN: 2320758
LogP: 9 at 20℃
CAS DataBase Reference: 546-56-5(CAS DataBase Reference)
NIST Chemistry Reference: Octaphenylcyclotetrasiloxane(546-56-5)
EPA Substance Registry System: Cyclotetrasiloxane, octaphenyl- (546-56-5)

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Safety

Safety Statements: 22-24/25
WGK Germany: 1
RTECS: GZ4398500
TSCA: Yes
HS Code: 29319090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical

Product number: O0231
Product name: Octaphenylcyclotetrasiloxane
Purity: >98.0%(HPLC)
Packaging: 5g
Price: $23
Updated: 2024/03/01

TCI Chemical

Product number: O0231
Product name: Octaphenylcyclotetrasiloxane
Purity: >98.0%(HPLC)
Packaging: 25g
Price: $61
Updated: 2024/03/01

Alfa Aesar

Product number: L06130
Product name: Octaphenylcyclotetrasiloxane, 98+%
Packaging: 25g
Price: $62.65
Updated: 2024/03/01

Alfa Aesar

Product number: L06130
Product name: Octaphenylcyclotetrasiloxane, 98+%
Packaging: 100g
Price: $130.65
Updated: 2024/03/01

TRC

Product number: O273115
Product name: Octaphenylcyclotetrasiloxane
Packaging: 250mg
Price: $45
Updated: 2021/12/16

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Octaphenylcyclotetrasiloxane Chemical Properties,Usage,Production

Chemical Properties

Octaphenylcyclotetrasiloxane (OPCTS) is a white solid. It can be used for synthesizing pharmaceutical intermediates and organic silicone intermediates, especially for high temperature resistant phenyl silicone oil and other polymers.

Preparation

Octaphenylcyclotetrasiloxane is typically produced industrially by one of two processes: 1) the hydrolysis of diphenyldichlorosilane or 2) the hydrolysis of diphenyldialkoxysilanes.
Process the production of octaphenylcyclotetrasiloxane

Flammability and Explosibility

Not classified

Purification Methods

Recrystallise it from AcOH, EtOAc, *C6H6 or *C6H6/EtOH. It forms two stable isomorphs and both forms, as well as the mixture, melt at 200-201o. There is a metastable form which melts at 187-189o. [Burkhard et al. J Am Chem Soc 67 2174 1945, Hyde et al. J Am Chem Soc 69 488 1947, Beilstein 16 IV 1530.]

Octaphenylcyclotetrasiloxane Preparation Products And Raw materials

Raw materials

Preparation Products

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Octaphenylcyclotetrasiloxane Suppliers

Americas 1 Belgium 3 China 253 Europe 1 France 2 Germany 5 India 3 Italy 1 Japan 5 New Zealand 1 Singapore 1 South Korea 1 Switzerland 2 The Netherlands 1 United Kingdom 6 United States 33 Global 319

CHEMOS GmbH & Co. KG

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Email: chemos@chemos.de
Country: Germany
ProdList: 6727
Advantage: 58

Alfa Aesar, Thermo Fisher Scientific

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Email: es@alfa.com
Country: Germany
ProdList: 5123
Advantage: 58

ChemPur GmbH

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Email: info@ChemPur.de
Country: Germany
ProdList: 2737
Advantage: 50

ABCR GmbH & CO. KG

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Email: info@abcr.de
Country: Germany
ProdList: 6831
Advantage: 75

Service Chemical Inc.

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Email: sales@chemos-group.com
Country: Germany
ProdList: 6350
Advantage: 71

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View Lastest Price from Octaphenylcyclotetrasiloxane manufacturers

Henan Fengda Chemical Co., Ltd

Product: Octaphenylcyclotetrasiloxane 546-56-5
Price: US $100.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-26

Career Henan Chemical Co

Product: Octaphenylcyclotetrasiloxane 546-56-5
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: Customized
Release date: 2018-08-06

546-56-5, OctaphenylcyclotetrasiloxaneRelated Search:

DIPHENYLCYCLOPROPENONE 1,1,3,3,5,5-hexamethyl-1,3,5-trisilacyclohexane Octamethylcyclotetrasiloxane Cyclohexylbenzene 1,1,3,3-Tetramethyldisiloxane DODECAMETHYLCYCLOHEXASILOXANE Hexamethylcyclotrisiloxane Bromoxynil octanoate 1,8-Octanedinitrile Silicone oil 1,1,3,3-TETRAMETHYLDISILOXANE Diphenylsilanediol 1,1,3,3-Tetramethyltetraphenylcyclotetrasiloxane Phenylsilane heptamethylphenylcyclotetrasiloxane 3-PHENYL-1,1,3,5,5-PENTAMETHYLTRISILOXANE 2,4,6,8-Tetramethylcyclotetrasiloxane 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE

1-phenyl-2,5-dihydro-1$l^{5}-phosphole 1-oxide

CFS-565

Co-Formula CFS-565

OCTAPHENYLCYCLOTETRASILOXANE

CO9817

Cyclotetrasiloxane, octaphenyl-

octaphenyl-cyclotetrasiloxan

octaphenylcylclotetrasiloxane

Octaphenyltetracyclosiloxane

OCTAPHENYLCYCLOTETRASILOXANE 99+%

Octaphenylcyclotetrasiloxane,98+%

2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7-tetraoxa-2,4,6,8-tetrasilacyclooctane

2,2,4,4,6,6,8,8-Octaphenylcyclooctanetetrasiloxane

Cyclotetrasiloxane,2,2,4,4,6,6,8,8-octaphenyl-

1,1,3,3,5,5,7,7-Octaphenylcyclotetrasiloxane

2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

2,4,6,8-tetradiphenyl-[1,3,5,7,2,4,6,8]cyclotetrasiloxane

D 4ph

Phenyl-D4

JACS-546-56-5

Octaphenylcyclotetrasiloxane&gt

Octaphenylcyclotetrasiloxane ISO 9001：2015 REACH

2,2,4,4,6,6,8,8-Ctaphenyl-1,3,5,7,2,4,6,8-Tetraoxatetrasilcane

2,2,4,4,6,6,8,8-octakis-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Octabhenyl cyclotetrasiloxane

Phenyl Mrthyl Silicone Fluid

Ctaphenylcyclotetrasiloxane

Octaphenylcyclotetrasilox

546-56-5

C48H40O4Si4

C6H58Si4O4

-SiC6H52O4

Organometallic Reagents

Organosilicon

Siloxanes

Si-O Compounds

Si (Classes of Silicon Compounds)

Organosilicon

Organometallic Reagents

Si (Classes of Silicon Compounds)

Siloxanes

Si-O Compounds

Phenyl Silanes

Organics