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Ethoxytrimethylsilane

Ethoxytrimethylsilane structure

CAS No.: 1825-62-3

Chemical Name:: Ethoxytrimethylsilane

Synonyms: Silane, ethoxytrimethyl-;TRIMETHYLETHOXYSILANE;TMEOS;DK160;CT2970;EXP-51;DKSI057;DKFELEX0340;EthoxytrimethyL;Three Methylsilane

CBNumber:: CB6853242

Molecular Formula:: C5H14OSi

Molecular Weight:: 118.25

MDL Number:: MFCD00009069

MOL File:: 1825-62-3.mol

MSDS File:: SDS

Last updated:2026-05-28 06:31:32

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Ethoxytrimethylsilane Properties

Melting point	-83°C
Boiling point	75-76 °C(lit.)
Density	0.757 g/mL at 25 °C(lit.)
vapor pressure	533 hPa (56 °C)
refractive index	n20/D 1.374(lit.)
Flash point	-18 °C
storage temp.	Store below +30°C.
form	Liquid
color	Clear colorless
Specific Gravity	0.757
explosive limit	1.5-16.5%(V)
Water Solubility	reacts
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	1731950
Dielectric constant	3.0099999999999998
InChI	1S/C5H14OSi/c1-5-6-7(2,3)4/h5H2,1-4H3
InChIKey	RSIHJDGMBDPTIM-UHFFFAOYSA-N
SMILES	CCO[Si](C)(C)C
LogP	-0.31-3.7 at 20-25℃
CAS DataBase Reference	1825-62-3(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	82883M7A40
NIST Chemistry Reference	Silane, ethoxytrimethyl-(1825-62-3)
EPA Substance Registry System	Trimethylethoxysilane (1825-62-3)
UNSPSC Code	12352103
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS07

Signal word

Danger

Hazard statements

H315-H319-H225

Precautionary statements

P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P403+P235

PPE

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Codes

F,Xn,Xi

Risk Statements

11-22-36/37/38

Safety Statements

16-26-9-37/39-33

RIDADR

UN 1993 3/PG 2

WGK Germany

RTECS

VV4110000

Autoignition Temperature

280 °C

TSCA

TSCA listed

HS Code

2931 90 00

HazardClass

PackingGroup

Storage Class

3 - Flammable liquids

Hazard Classifications

Flam. Liq. 2

REACH Registrations

Active

Limited Quantities

1.0 L (0.3 gallon) (liquid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	3
2		0

Ethoxytrimethylsilane price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	254371	Ethoxytrimethylsilane 98%	1825-62-3	25g	$67.8	2026-04-30	Buy
Sigma-Aldrich	8.18821	Ethoxytrimethylsilane for synthesis	1825-62-3	100mL	$129	2026-04-30	Buy
Sigma-Aldrich	254371	Ethoxytrimethylsilane 98%	1825-62-3	100g	$210	2026-04-30	Buy
Sigma-Aldrich	8.18821	Ethoxytrimethylsilane for synthesis	1825-62-3	25mL	$53	2025-07-31	Buy
TCI Chemical	T1394	Trimethylethoxysilane >98.0%(GC)	1825-62-3	25mL	$28	2026-04-30	Buy

Product number	Packaging	Price	Buy
254371	25g	$67.8	Buy
8.18821	100mL	$129	Buy
254371	100g	$210	Buy
8.18821	25mL	$53	Buy
T1394	25mL	$28	Buy

Ethoxytrimethylsilane Chemical Properties, Uses, Production

Chemical Properties

clear colorless liquid

Uses

Ethoxytrimethylsilane is also called Trimethylethoxysilane, an intermediate useful for blocking hydroxyl or amino groups to perform reactions on multi-functional organic compounds or polymers. It is also useful for deactivating glass surfaces used in gas chromatographic applications.

Uses

Ethoxytrimethylsilane is used in preparation method of solvent-free heavy peeling regulator for silicon release.

General Description

Ethoxytrimethylsilane (ETMS) is an alkoxysilane that is used as a capping agent, which can tune the hydrophobic properties for a variety of substrates by coupling with the surface hydroxyl groups.

Ethoxytrimethylsilane Preparation Products And Raw materials

Raw materials

Ethanol Chlorotrimethylsilane 2,3-Dichloro-5,8-dihydroxy-1,4-naphthoquinone Diethyl ether tert-Butoxytrimethylsilane

Pyridine 2-Ethoxy-1,3-dioxolane Ethylene glycol mono-tert-butyl ether

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Preparation Products

Benzaldehyde diethyl acetal Diethoxydichlorosilane Ethoxytrichlorosilane 97 Tetrakis(trimethylsiloxy)silane Tetradecamethylhexasiloxane

Trimethylsilyl trifluoroacetate Octamethyltrisiloxane Ethyl benzenesulphonate ethyl methanesulfinate

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Ethoxytrimethylsilane Suppliers

Global Suppliers ( 227)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai Gileader Advanced Material Technology Co.,Ltd	18516111942	823898732@qq.com	China	1356	56
Xinyaqiang Silicon Chemistry Co., Ltd.	19921372399	sales03@newasiaman.com	China	270	58
Aifute (Tianjin) New Materials Co., Ltd	18756952323 18756942323	825482787@qq.com	China	55	58
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
New Energy Chemicals	0515-82159099 13770142076	info@njuchem.com	China	251	65
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Shijiazhuang Sdyano Fine Chemical Co., Ltd.	0311-89250318 13582355795	master@sjzsdyn.com	China	2776	65
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64

Supplier	Advantage
Shanghai Gileader Advanced Material Technology Co.,Ltd	56
Xinyaqiang Silicon Chemistry Co., Ltd.	58
Aifute (Tianjin) New Materials Co., Ltd	58
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
New Energy Chemicals	65
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Shijiazhuang Sdyano Fine Chemical Co., Ltd.	65
Shanghai Hanhong Scientific Co.,Ltd.	64

View Latest Price from Ethoxytrimethylsilane manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-28	Ethoxytrimethylsilane 1825-62-3	$2.00-5.00	1KG	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD
2019-09-03	Ethoxytrimethylsilane 1825-62-3	$7.00	1KG	99%		Career Henan Chemical Co
2019-09-03	Ethoxytrimethylsilane 1825-62-3	$7.00	1KG	99%		Career Henan Chemical Co

Ethoxytrimethylsilane
1825-62-3
$2.00-5.00
99%
Hebei Chuanghai Biotechnology Co,.LTD

Ethoxytrimethylsilane
1825-62-3
$7.00
99%
Career Henan Chemical Co

Ethoxytrimethylsilane
1825-62-3
$7.00
99%
Career Henan Chemical Co

Ethoxytrimethylsilane Spectrum

Ethoxytrimethylsilane(1825-62-3)MS Ethoxytrimethylsilane(1825-62-3)¹HNMR Ethoxytrimethylsilane(1825-62-3)¹³CNMR Ethoxytrimethylsilane(1825-62-3)IR1 Ethoxytrimethylsilane(1825-62-3)Raman

1825-62-3 (Ethoxytrimethylsilane) Related Search:

Methyltriacetoxysilane Trimethoxysilane Ethoxymethylenemalononitrile Diethoxydimethylsilane Dimethyldimethoxysilane

Ethyl silicate Trimethylsilane Methoxytrimethylsilane Fluorotriethylsilane N,O-Bis(trimethylsilyl)acetamide

2-(Trimethylsiloxy)-1,3-butadiene Bis(trimethylsilyl)trifluoroacetamide Trimethylsilyl trifluoroacetate 1-Methoxy-3-trimethylsiloxy-1,3-butadiene Trimethylsilyl bromoacetate

Trimethylsilyl(trimethylsiloxy)acetate Trimethylsilyl acetate 1,2-Bis(trimethylsilyloxy)ethane

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Trimethylethoxysilane,min.97% Silane, ethoxytrimethyl- DIMETHYLDIMETHOXYSILICANE Trimethylethoxysilane, min. 97% Ethoxytrimethylsilane,95% EthoxytriMethylsilane, 95% 25GR Three Methylsilane Trimethylsilyl ethoxide CT2970 ethoxytrimethyl-silan Ethyl trimethylsilyl ether EXP-51 Silane, ethoxy-, trimethoxy Silane, trimethylethoxy- trimethylethoxy-silan Trimethylethoxysilicane Trimethylsilyl ethyl ether ETHOXYTRIMETHYLSILANE TRIMETHYLETHOXYSILANE Trimethylethoxysilane, TMEOS Ethoxytrimethylsilane,>98% ETHOXYTRIMETHYLSILANE FOR SYNTHESIS EthoxytrimethyL TRIMETHYLETHOXYSILANE CAS NO.: 1825-62-3 DK160 Trimethylethoxysilane, ≥ 98.0% DKFELEX0340 DKSI057 TMEOS Trimethy lethoxysllan e 1825-62-3 1825-61-3 CH33SiOC2H5 C2H5OSiCH33 CH33SiOCH2CH3 Si (Classes of Silicon Compounds) Monoalkoxysilanes Si-O Compounds Organosilicon Organometallic Reagents Siloxanes Pyrimidines ,Heterocyclic Acids organosilicon compounds Monoalkoxysilanes Si (Classes of Silicon Compounds) Si-O Compounds