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Dodecyltrimethoxysilane

Dodecyltrimethoxysilane structure

CAS No.: 3069-21-4

Chemical Name:: Dodecyltrimethoxysilane

Synonyms: HD-111;KH-3112;CH3(CH2)11Si(OMe)3;N-DODECYLTRIMETHOXY;Silane coupler WD-10;Silane coupler HD-111;LAURYLTRIMETHOXYSILANE;trimethoxydodecylsilan;DODECYLTRIMETHOXYSILANE;Trimethox-dodecyl-silan

CBNumber:: CB8262071

Molecular Formula:: C15H34O3Si

Molecular Weight:: 290.51

MDL Number:: MFCD00069148

MOL File:: 3069-21-4.mol

Last updated:2025-07-04 15:11:00

Product description	Number	Pack Size	Price
Dodecyltrimethoxysilane >93.0%(GC)	D3383	25g	$42
Dodecyltrimethoxysilane >93.0%(GC)	D3383	250g	$234
n-Dodecyltrimethoxysilane	274313	100g	$232
Dodecyltrimethoxysilane 95+%	099323	100g	$236
n-Dodecyltrimethoxysilane	FD55176	1kg	$250
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Dodecyltrimethoxysilane Properties

Melting point	-40°C
Boiling point	125 °C
Density	0.89
refractive index	1.4274
Flash point	108°C
storage temp.	Inert atmosphere,Room Temperature
form	clear liquid
color	Colorless to Almost colorless
Specific Gravity	0.89
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2356323
InChI	InChI=1S/C15H34O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-19(16-2,17-3)18-4/h5-15H2,1-4H3
InChIKey	SCPWMSBAGXEGPW-UHFFFAOYSA-N
SMILES	[Si](CCCCCCCCCCCC)(OC)(OC)OC
CAS DataBase Reference	3069-21-4(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319

Precautionary statements

P280h-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313

Risk Statements

36/37/38-36/38

Safety Statements

26-36/37/39-26/37

HS Code

29319090

NFPA 704

	1
2		0

Dodecyltrimethoxysilane price More Price(25)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TCI Chemical	D3383	Dodecyltrimethoxysilane >93.0%(GC)	3069-21-4	25g	$42	2025-07-31	Buy
TCI Chemical	D3383	Dodecyltrimethoxysilane >93.0%(GC)	3069-21-4	250g	$234	2025-07-31	Buy
Usbiological	274313	n-Dodecyltrimethoxysilane	3069-21-4	100g	$232	2021-12-16	Buy
Matrix Scientific	099323	Dodecyltrimethoxysilane 95+%	3069-21-4	100g	$236	2021-12-16	Buy
Biosynth Carbosynth	FD55176	n-Dodecyltrimethoxysilane	3069-21-4	1kg	$250	2021-12-16	Buy

Product number	Packaging	Price	Buy
D3383	25g	$42	Buy
D3383	250g	$234	Buy
274313	100g	$232	Buy
099323	100g	$236	Buy
FD55176	1kg	$250	Buy

Dodecyltrimethoxysilane Chemical Properties,Uses,Production

Chemical Properties

Colorless to yellowish transparent liquid

Physical properties

This colorless to straw-colored liquid boasts a density of 0.89 g/cm³, a melting point of -40°C, and a boiling point of 125°C. With a flash point of 108°C and a refractive index of 1.4274, it exhibits stability under specific conditions, making it suitable for diverse industrial uses.

Application

One of the standout features of Dodecyltrimethoxysilane is its exceptional hydrophobicity, which makes it an ideal water-repellent agent. When applied through impregnation, it forms a protective hydrophobic layer on surfaces, preventing water infiltration. This property is particularly valuable in construction, where it is used to treat concrete, stone, and other porous materials. By inhibiting moisture penetration, it enhances the durability and weather resistance of structures, protecting them from damage caused by rain, humidity, or freeze-thaw cycles.Beyond construction, its water-repellent capabilities extend to other fields such as automotive and textile industries.

Dodecyltrimethoxysilane synthesis

Synthesis of Dodecyltrimethoxysilane from DODECYLTRICHLOROSILANE

Dodecyltrimethoxysilane Preparation Products And Raw materials

Raw materials

DODECYLMAGNESIUM BROMIDE DODECYLTRICHLOROSILANE Methanol Potassium methoxide

Preparation Products

Dodecyltrimethoxysilane Suppliers

Global( 285)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Yanxi Chemical Co., Ltd.	+8618531123677	faithe@yan-xi.com	China	5853	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20128	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13799	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21597	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
Zjartschem	+86-571 87238903	jocelynpan@zjarts.com	CHINA	988	58
Tianjin Zhongxin Chemtech Co., Ltd.	86-22-66880623 +8618622897568	sales@tjzxchem.com	China	572	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
Xiamen AmoyChem Co., Ltd	+86-86-5926051114 +8615060885618	sales@amoychem.com	China	6369	58

Supplier	Advantage
Hebei Yanxi Chemical Co., Ltd.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Zjartschem	58
Tianjin Zhongxin Chemtech Co., Ltd.	58
career henan chemical co	58
Xiamen AmoyChem Co., Ltd	58

View Lastest Price from Dodecyltrimethoxysilane manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-09-25	n-Dodecyltrimethoxysilane 3069-21-4	US $8.00-0.60 / KG	1KG	99%	g-kg-tons, free sample is available	Henan Fengda Chemical Co., Ltd
2025-07-17	n-Dodecyltrimethoxysilane 3069-21-4	US $8.46-6.88 / kg	200kg	99.78%	8000 tons per year	Iota silicone oil (Anhui) Co.,ltd.
2025-06-27	Dodecyltrimethoxysilane 3069-21-4	US $0.00-0.00 / KG	1KG	99%	500000kg	Hebei Chuanghai Biotechnology Co., Ltd

n-Dodecyltrimethoxysilane
3069-21-4
US $8.00-0.60 / KG
99%
Henan Fengda Chemical Co., Ltd

n-Dodecyltrimethoxysilane
3069-21-4
US $8.46-6.88 / kg
99.78%
Iota silicone oil (Anhui) Co.,ltd.

Dodecyltrimethoxysilane
3069-21-4
US $0.00-0.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

Dodecyltrimethoxysilane Spectrum

Dodecyltrimethoxysilane(3069-21-4)MS Dodecyltrimethoxysilane(3069-21-4)¹HNMR Dodecyltrimethoxysilane(3069-21-4)¹³CNMR Dodecyltrimethoxysilane(3069-21-4)IR1

3069-21-4(Dodecyltrimethoxysilane)Related Search:

N-DODECYLTRIETHOXYSILANE Trimethoxyphenylsilane Dodecylbenzenesulphonic acid Vinyltrimethoxysilane Trimethoxysilylpropanethiol

Dodecane Trimethoxypropylsilane N-OCTADECYLTRIETHOXYSILANE Trimethoxysilane 3-Chloropropyltrimethoxysilane

3-Aminopropyltrimethoxysilane DODECYLBENZENE Triethoxyvinylsilane SILANE COUPLING AGENT Dodecyltrimethylammonium chloride

Dodecyltrimethylammonium Bromide DODECYLTRICHLOROSILANE Sodium dodecylbenzenesulphonate

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N-DODECYLTRIMETHOXYSILANE LAURYLTRIMETHOXYSILANE DODECYLTRIMETHOXYSILANE Dodecyltrimethoxysilane(1-trimethoxysilyldodecane) Longchainalkyl-trimethoxysilane n-dodecytrimethoxysilane 1-TRIMETHOXYSILYLDODECANE Silane coupler WD-10 Trimethoxy(dodecyl)silane Silane coupler HD-111 HD-111 Silane,dodecyltriMethoxy- CH3(CH2)11Si(OMe)3 N-DODECYLTRIMETHOXY Trimethox-dodecyl-silan trimethoxydodecylsilan Dodecyltrimethoxysilane> TIANFUCHEM--3069-21-4--Dodecyltrimethoxysilane in stock KH-3112 3069-21-4 2147-09-1 C15H34O3Si CH3CH211SiOCH33 Alkyl Si (Classes of Silicon Compounds) Si-O Compounds Trialkoxysilanes Alkoxy Silanes Hydrophobing Agents