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| CAS No.: | 1185-55-3 |
|---|---|
| Name: | Methyltrimethoxysilane |
| Molecular Structure: | |
|
|
|
| Formula: | C4H12O3Si |
| Molecular Weight: | 136.223 |
| Synonyms: | (Trimethoxysilyl)methane;Silane,trimethoxymethyl-;Dynasylan MTMS;Glasca B;Methylsilicon trimethoxide (MeSi(OMe)3);NUCSilicone A 163;Silquest A 163;Silquest A 1630;Trimethoxymethylsilane;Methyltrimethoxysilane, Trimethoxy methyl silane; |
| EINECS: | 214-685-0 |
| Density: | 0.911 g/cm3 |
| Melting Point: | <-70 ºC |
| Boiling Point: | 102.5 ºC at 760 mmHg |
| Flash Point: | 11.1 ºC |
| Solubility: | decomposes in water |
| Appearance: | colourless liquid |
| Hazard Symbols: |
 F
|
| Risk Codes: | 11 |
| Safety: | 16 |
| Transport Information: | UN 1993 3/PG 2 |
| PSA: | 27.69000 |
| LogP: | 0.49430 |
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| Conditions | Yield |
|---|---|
| With C6H5N(CH3)2; CH3OH reaction in presence of Dimethylphenyl amine:; | 90% |
| With methanol; N,N-dimethyl-aniline reaction in presence of Dimethylphenyl amine:; | 90% |
| With C5H5N; CH3OH reaction in presence of pyridine;; |
| Conditions | Yield |
|---|---|
| at 35℃; for 7h; Temperature; Inert atmosphere; Large scale; | 80.2% |
| Conditions | Yield |
|---|---|
| bismuth(III) chloride at 25℃; for 15h; Inert atmosphere; | 59% |
- 5926-26-1
(chloromethyl)trimethoxysilane
A
- 1185-55-3
Methyltrimethoxysilan
B
- 17861-41-5
1,1,3,3,5,5-hexamethoxy-1,3,5-trisilacyclohexane
| Conditions | Yield |
|---|---|
| With magnesium In tetrahydrofuran at -20 - 0℃; | A 0.5% B 45% C 20% |
- 109-87-5
Dimethoxymethane
- 71520-43-9
tris(ethylthio)methylsilane
A
- 1185-55-3
Methyltrimethoxysilan
B
- 77454-95-6
(ethylthio)methoxymethane
| Conditions | Yield |
|---|---|
| With zinc(II) chloride In toluene at 0℃; for 5h; Product distribution; other temperature; | A 4% B 10% |
| With zinc(II) chloride In toluene at 0℃; for 5h; | A 4% B 10% |
- 75-79-6
Methyltrichlorosilane
A
- 1185-55-3
Methyltrimethoxysilan
B
- 18186-97-5
1,3-dimethyltetramethoxydisiloxane
C
- 17866-12-5
1,1,3,5,5-pentamethoxy-1,3,5-trimethyl-trisiloxane
D
- 17988-15-7
1,1,3,5,7,7-hexamethoxy-1,3,5,7-tetramethyl-tetrasiloxane
| Conditions | Yield |
|---|---|
| With CH3OH | A n/a B n/a C 9.6% D 5.6% |
| With CH3OH | A n/a B n/a C 9.6% D 5.6% |
- 18107-32-9
1,1,2,2-tetramethoxy-1,2-dimethyl-disilane
- 1185-55-3
Methyltrimethoxysilan
| Conditions | Yield |
|---|---|
| (basic elimination); |
- 1825-61-2
Methoxytrimethylsilane
- 373-74-0
methyltrifluorosilane
- 271772-12-4
methylfluorodimethoxysilane
- 271772-13-5
methyldifluoromethoxysilane
A
- 420-56-4
trimethylsilyl fluoride
B
- 1185-55-3
Methyltrimethoxysilan
| Conditions | Yield |
|---|---|
| at 120℃; Equilibrium constant; |
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Consensus Reports
Reported in EPA TSCA Inventory.
Specification
The Methyltrimethoxysilane, with the CAS registry number 1185-55-3, is also known as Trimethoxy(methyl)silane. It belongs to the product categories of Organosilicon;Self Assembly &;Silane Coupling Agents/Adhesion Promoters.This chemical's molecular formula is C4H12O3Si and molecular weight is 136.22.Its EINECS number is 214-685-0. What's more,Its systematic name is Trimethoxy(methyl)silane.It is a colorless clear liquid.And it is stable,but moisture sensitive, highly flammable,incompatible with water, strong acids, strong oxidizing agents.It is highly Flammable,when you use it ,keep away from sources of ignition-No smoking.
Physical properties about Methyltrimethoxysilane are:
(1)ACD/LogP: 1.653; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.65; (4)ACD/LogD (pH 7.4): 1.65; (5)ACD/BCF (pH 5.5): 10.62; (6)ACD/BCF (pH 7.4): 10.62; (7)ACD/KOC (pH 5.5): 188.84; (8)ACD/KOC (pH 7.4): 188.84; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 3; (12)Index of Refraction: 1.379; (13)Molar Refractivity: 34.533 cm3; (14)Molar Volume: 149.386 cm3; (15)Surface Tension: 18.4139995574951 dyne/cm; (16)Density: 0.912 g/cm3; (17)Flash Point: 11.111 °C; (18)Enthalpy of Vaporization: 32.75 kJ/mol; (19)Boiling Point: 102.499 °C at 760 mmHg; (20)Vapour Pressure: 38.8209991455078 mmHg at 25°C.
You can still convert the following datas into molecular structure:
(1)(1)SMILES:O(C)[Si](OC)(OC)C;
(2)Std. InChI:InChI=1S/C4H12O3Si/c1-5-8(4,6-2)7-3/h1-4H3;
(3)Std. InChIKey:BFXIKLCIZHOAAZ-UHFFFAOYSA-N.
The toxicity data of Methyltrimethoxysilane as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rabbit | LD | skin | > 10mL/kg (10mL/kg) | Union Carbide Data Sheet. Vol. 1/17/1972, | |
| rat | LD50 | oral | 12300uL/kg (12.3mL/kg) | Union Carbide Data Sheet. Vol. 1/17/1972, |