Methyltrimethoxysilane

Modify Date: 2025-08-20 17:10:22

Methyltrimethoxysilane structure	Common Name	Methyltrimethoxysilane
	CAS Number	1185-55-3	Molecular Weight	136.222
	Density	0.9±0.1 g/cm3	Boiling Point	102.5±0.0 °C at 760 mmHg
	Molecular Formula	C₄H₁₂O₃Si	Melting Point	<-70ºC
	MSDS	Chinese USA	Flash Point	11.1±0.0 °C
	Symbol	GHS02, GHS07	Signal Word	Danger

Name	Trimethoxy(methyl)silane
Synonym	More Synonyms

Density	0.9±0.1 g/cm3
Boiling Point	102.5±0.0 °C at 760 mmHg
Melting Point	<-70ºC
Molecular Formula	C₄H₁₂O₃Si
Molecular Weight	136.222
Flash Point	11.1±0.0 °C
Exact Mass	136.055573
PSA	27.69000
LogP	0.14
Vapour Pressure	38.8±0.1 mmHg at 25°C
Index of Refraction	1.379
Storage condition	2-8°C
Stability	Stable, but moisture sensitive. Highly flammable. Incompatible with water, strong acids, strong oxidizing agents.
Water Solubility	decomposes

Methyltrimethoxysilane MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VV4650000

CHEMICAL NAME :: Silane, methyltrimethoxy-

CAS REGISTRY NUMBER :: 1185-55-3

LAST UPDATED :: 199710

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C4-H12-O3-Si

MOLECULAR WEIGHT :: 136.25

WISWESSER LINE NOTATION :: 1O-SI-1&O1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/17/1972

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1221,1986 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 12300 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/17/1972

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >10 mL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/17/1972 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M3881 No. of Facilities: 19 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 151 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M3881 No. of Facilities: 2198 (estimated) No. of Industries: 37 No. of Occupations: 44 No. of Employees: 97031 (estimated) No. of Female Employees: 33893 (estimated)

Symbol	GHS02, GHS07
Signal Word	Danger
Hazard Statements	H225-H317
Precautionary Statements	P210
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	F:Flammable
Risk Phrases	R11
Safety Phrases	S16
RIDADR	UN 1993 3/PG 2
WGK Germany	3
RTECS	VV4650000
Packaging Group	II
Hazard Class	3
HS Code	29310095

Precursor 10
CAS#:75-79-6 Methyltrichloro... CAS#:1016-09-7 [methoxy(phenyl... CAS#:67-56-1 Methanol CAS#:7440-21-3 Silicon
CAS#:109-87-5 dimethoxymethane CAS#:71520-43-9 tris(ethylthio)... CAS#:124-41-4 Sodium Methylate CAS#:18107-32-9 1,2-Dimethyl te...
CAS#:1825-61-2 Trimethyl Metho... CAS#:373-74-0 methyltrifluoro...
DownStream 10
CAS#:1825-61-2 Trimethyl Metho... CAS#:373-74-0 methyltrifluoro... CAS#:271772-12-4 fluorodimethoxy... CAS#:271772-13-5 difluoro(methox...
CAS#:1112-39-6 Dimethoxy(dimet... CAS#:52686-74-5 fluoromethoxy(d... CAS#:358-67-8 Dimethoxy(methy... CAS#:17865-85-9 Octamethylsilse...
CAS#:17928-28-8 Methyl Tris(Tri... CAS#:7671-19-4 BIS(TRIMETHYLSI...

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Simultaneous analysis of basic, acidic and neutral compounds on an endcapped octadecylsilane silica-based monolith by pressure-assisted capillary electrochromatography.

Electrophoresis 29(4) , 944-51, (2008)

This simultaneous separation of basic, acidic and neutral analytes by pressure-assisted CEC (pCEC) using a hybrid (tetramethoxysilane and methyltrimethoxysilane) silica-based monolith, chemically modi...

Preparation and catalytic performance of lipases encapsulated in sol-gel materials.

Biosci. Biotechnol. Biochem. 66(1) , 221-3, (2002)

Three kinds of lipases (from Candida antarctica, Pseudomonas cepacia, and Pseudomonas fluorescens) were encapsulated in inorganic matrices by the sol-gel method in order to synthesize chiral compounds...

Anion exchange silica monolith for capillary liquid chromatography.

Anal. Bioanal. Chem 391(7) , 2551-6, (2008)

An anion exchange monolithic silica capillary column was prepared by surface modification of a hybrid monolithic silica capillary column prepared from a mixture of tetramethoxysilane (TMOS) and methyl...

Silane, trimethoxymethyl-

Dynasylan MTMS

Methyltrimethoxysilane

unioncarbidea-163

Metyltrimethoxysilane

MTMS

Z 6070

CM9100

Trimethoxymethylsilane

monomethyl trimethoxy silane

Trimethoxy(methyl)silane

Methyltrimethoxysilane in stock

Methyltrimethoxysilane,AcroSeal

Trimethoxymethylsila

HD-119

EINECS 214-685-0

MFCD00008342

silanea-163

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Methyltrimethoxysilane
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Methyltrimethoxysilane
Price: ￥168.0/500ml
Purity: 98.0%
Delivery: Inquiry
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Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Methyltrimethoxysilane
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Methyltrimethoxysilane; Trimethoxymethylsilane; A-1630; MTMS; DC Z-6070
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Methyltrimethoxysilane
Price: ￥Inquiry/25kg
Purity: 98.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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