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PENTAMETHYLCYCLOPENTASILOXANE

PENTAMETHYLCYCLOPENTASILOXANE structure

CAS No.: 6166-86-5

Chemical Name:: PENTAMETHYLCYCLOPENTASILOXANE

Synonyms: D 5H;LS 8990;Einecs 228-204-7;PENTAMETHYLCYCLOPENTASILOXANE;2,4,6,8,10-PENTAMETHYLCYCLOPENTASILOXANE;2,4,6,8,10-pentamethyl-cyclopentasiloxan;Cyclopentasiloxane, 2,4,6,8,10-pentamethyl-;2,4,6,8,10-Pentamethylcyclodecapentasiloxane;2,4,6,8,10-Pentamethylcyclodecanepentasiloxane;2,4,6 8,10-PENTAMETHYLCYCLOPENTASILOXANE TECH 90+%

CBNumber:: CB5119606

Molecular Formula:: C5H20O5Si5

Molecular Weight:: 300.64

MDL Number:: MFCD00053531

MOL File:: 6166-86-5.mol

MSDS File:: SDS

Last updated:2023-05-15 10:43:28

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PENTAMETHYLCYCLOPENTASILOXANE Properties

Melting point	-108°C
Boiling point	54 °C/10 mmHg (lit.)
Density	0.992 g/mL at 25 °C (lit.)
vapor pressure	0.05-91Pa at 20℃
refractive index	n20/D 1.392(lit.)
Flash point	39°C
storage temp.	2-8°C
form	liquid
Specific Gravity	0.998
Viscosity	19.6mm2/s
Water Solubility	110-1000000000μg/L at 20℃
Hydrolytic Sensitivity	3: reacts with aqueous base
BRN	1792134
LogP	-2.4-6.33 at 20℃
EPA Substance Registry System	Cyclopentasiloxane, 2,4,6,8,10-pentamethyl- (6166-86-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS02
Signal word	Warning
Hazard statements	H226
Precautionary statements	P210-P233-P240-P241-P242-P243
Hazard Codes	Xi
Risk Statements	10-36/37/38
Safety Statements	16-26-36
RIDADR	UN 1993 3/PG 3
WGK Germany	3
F	10-21
TSCA	Yes

PENTAMETHYLCYCLOPENTASILOXANE price More Price(2)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	517801	2,4,6,8,10-Pentamethylcyclopentasiloxane 96%	6166-86-5	25ml	$186	2023-06-20	Buy
TRC	P227410	2,4,6,8,10-Pentamethylcyclopentasiloxane	6166-86-5	2.5ml	$95	2021-12-16	Buy

Product number	Packaging	Price	Buy
517801	25ml	$186	Buy
P227410	2.5ml	$95	Buy

PENTAMETHYLCYCLOPENTASILOXANE Chemical Properties,Uses,Production

Uses

2,4,6,8,10-Pentamethylcyclopentasiloxane is an active reagent in the preparation of cyclolinear polysiloxanes and in the preparation of novel class of hybrid polyurethanes.

Flammability and Explosibility

Flammable

PENTAMETHYLCYCLOPENTASILOXANE synthesis

Synthesis of PENTAMETHYLCYCLOPENTASILOXANE from Dichloromethylsilane and Water

PENTAMETHYLCYCLOPENTASILOXANE Preparation Products And Raw materials

Raw materials

Dichloromethylsilane

Preparation Products

1,1,1,3,5,5,5-Heptamethyltrisiloxane 2,4,6,8-Tetramethylcyclotetrasiloxane 2 4 6-TRIMETHYLCYCLOTRISILOXANE 99 1,3-BIS(TRIMETHYLSILOXY)-1,3-DIMETHYLDISILOXANE

PENTAMETHYLCYCLOPENTASILOXANE Suppliers

Global( 43)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15371	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32480	60
Hubei Co-Formula Material Tech Co., Ltd.	+86-27-84459282	sales@cfmats.com	CHINA	882	58
Career Henan Chemica Co	+86-0371-86658258 15093356674;	laboratory@coreychem.com	China	30255	58
Hefei TNJ Chemical Industry Co.,Ltd.	0551-65418671	sales@tnjchem.com	China	34572	58
WinWin Chemical CO., Limited	+86-0086-577-64498589 +86-15355981851	sales@win-winchemical.com	China	13854	58
Dayang Chem (Hangzhou) Co.,Ltd.	571-88938639 +8617705817739	info@dycnchem.com	CHINA	52867	58
Alfa Chemistry	+1-5166625404	Info@alfa-chemistry.com	United States	21317	58
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503259 +86-19930503259	cherry@crovellbio.com	China	18458	58
ShenZhen Trendseen Biological Technology Co.,Ltd.	13417589054	trendseenbio@gmail.com	China	11681	58

Supplier	Advantage
Shanghai Daken Advanced Materials Co.,Ltd	58
ATK CHEMICAL COMPANY LIMITED	60
Hubei Co-Formula Material Tech Co., Ltd.	58
Career Henan Chemica Co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
WinWin Chemical CO., Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Alfa Chemistry	58
Hebei Guanlang Biotechnology Co., Ltd.	58
ShenZhen Trendseen Biological Technology Co.,Ltd.	58

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2,4,6,8,10-PENTAMETHYLCYCLOPENTASILOXANE PENTAMETHYLCYCLOPENTASILOXANE PENTAMETHYLCYCLOPENTASILOXANE CONTAINS OTHER CYCLIC HOMOLOGS 2,4,6 8,10-PENTAMETHYLCYCLOPENTASILOXANE TECH 90+% PENTAMETHYLCYCLOPENTASILOXANE: 90% CONTAINS OTHER CYCLIC HOMOLOGS 2,4,6,8,10-Pentamethylcyclodecanepentasiloxane 2,4,6,8,10-Pentamethylcyclodecapentasiloxane Cyclopentasiloxane, 2,4,6,8,10-pentamethyl- Einecs 228-204-7 LS 8990 D 5H 2,4,6,8,10-pentamethyl-cyclopentasiloxan 2,4,6,8,10-pentamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane 2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ³,4λ³,6λ³,8λ³,10λ³-pentaoxapentasilecane 2,4,6,8,10-pentamethyl-1,3,5,7,9,2λ3,4λ3,6λ3,8λ3,10λ3-pentaoxapentasilecane 6166-86-5 C5H20O5Si5 CH3SiHO5 Siloxanes Organosilicon Organometallic Reagents Organometallic Reagents SiliconOrganometallic Reagents Organosilicon Precursors by Metal Siloxanes Vapor Deposition Precursors Chemical Synthesis CVD and ALD Precursors by Metal Materials Science Micro/NanoElectronics Organometallic Reagents Silicon Vapor Deposition Precursors