As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:681-84-5
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:681-84-5
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryUnique advantages for Tetramethyl orthosilicate Cas 681-84-5 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Liquid Storage:Store at room Package:200kg/drum Application:Flamm
Cas:681-84-5
Min.Order:25 Kilogram
FOB Price: $8.0 / 105.0
Type:Trading Company
inquiryIf you would like to buy CAS 681-84-5 Tetramethyl orthosilicate or ask for a sample of CAS 681-84-5 Tetramethyl orthosilicate, but you still have some questions about it. It doesn't matter. You can find the answer below
Cas:681-84-5
Min.Order:1 Kilogram
FOB Price: $14.0
Type:Lab/Research institutions
inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
Cas:681-84-5
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Manufacturers
inquiryProduct Name: Tetramethyl orthosilicate Synonyms: Dynasil M;Methyl orthosilicate;Methyl silicate ((CH3)4SiO4);Methyl silicate ((MeO)4Si);methylesterofortho-silicicaci;methylorthosilicate;methylsilicate((ch3)4sio4);methylsilicate
Cas:681-84-5
Min.Order:1 Gram
FOB Price: $8900.0
Type:Lab/Research institutions
inquiryProduct Detail Minimum Order Qty. 10 Gram
Cas:681-84-5
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
Tetramethoxysilane CAS: 681-84-5 Specification appearance colorless transparent liquid cas no 681-84-5 purity 99%min formula c4h12o4si molecular weight 152.22 boiling p
Cas:681-84-5
Min.Order:1 Kilogram
FOB Price: $100.0 / 150.0
Type:Other
inquiryHangzhou Fanda Chemical Co.,Ltd (FandaChem) , a China-based chemical company, specialize in exporting Tetramethoxysilane(Catylen D 1100;TMOS) CAS:681-84-5 , Please contact us by email freely. We are leading exporter in China. If you re
Cas:681-84-5
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:681-84-5
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryJ&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
Cas:681-84-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:681-84-5
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
Cas:681-84-5
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:colourless liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:25kg/drum, or as per your request. Application:Used as Pharmaceutical Intermediat
Appearance Colorless transparent liquid CAS NO 681-84-5 Purity 99%min Formula C4H12O4Si Molecular Weight 152.22
Cas:681-84-5
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Trading Company
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:681-84-5
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryProduct name: Methyl Silicate CAS No.:681-84-5 Molecule Formula:C2H6O3Si Molecule Weight:106.15 Purity: 98.0% Package: 200kg/drum Description: Colorless transparent liquid Manufacture Standards:Enterprise Standard
Cas:681-84-5
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as: Frac
Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:681-84-5
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:681-84-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAmoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi
1.High purity, like 99%, 99.9%, 99.95%, 99.99%, 99.999%2.Quality control, test sample before shipping and keep sample for 3 years after shipping;3. Prompt shipment with professional documents;4. Packing as your request, with photo before shipment;5.
Cas:681-84-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySpecifications CAS No.: 681-84-5 Other Names: Methyl silicate MF: C4H12O4Si EINECS No.: 211-656-4 Place
Cas:681-84-5
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryTMOS99.5% -Factory direct sales and Stable supply for a long time. Application:TMOS99.5% -Factory direct sales and Stable supply for a long time.
Cas:681-84-5
Min.Order:0
Negotiable
Type:Other
inquiryConditions | Yield |
---|---|
With amorphous silicon In hexane at 20℃; Temperature; Solvent; Inert atmosphere; Schlenk technique; Cooling with ice; | 98% |
With nickel(II) sulphate; tetrachlorosilane; trichlorosilane In tetrachloromethane at 55 - 60℃; for 3h; Large scale; | 96.8% |
Stage #1: methanol With iodine; silicon tetrafluoride; aluminium at 37℃; for 2.5h; Stage #2: at 40℃; for 2.5h; Reflux; | 86% |
methanol
silicon tetrafluoride
magnesium
B
tetramethylorthosilicate
Conditions | Yield |
---|---|
Stage #1: methanol; magnesium With iodine at 20℃; for 1.5h; Inert atmosphere; Reflux; Stage #2: silicon tetrafluoride Inert atmosphere; Stage #3: at 300℃; for 2h; Catalytic behavior; Reagent/catalyst; Temperature; Calcination; | A 98% B 85% |
Stage #1: methanol; magnesium at 20℃; for 3h; Stage #2: silicon tetrafluoride at 20℃; for 0.5h; Temperature; |
Conditions | Yield |
---|---|
With CH3OH; NH3 In methanol introduction of NH3 into CH3OH in absence of air; introduction of SiF4;; filtration; distn. of the filtrate;; | A n/a B 95% |
With methanol; ammonia In methanol introduction of NH3 into CH3OH in absence of air; introduction of SiF4;; filtration; distn. of the filtrate;; | A n/a B 95% |
(morpholinomethyl)hydrosilane
methanol
A
4-methyl-morpholine
B
tetramethylorthosilicate
C
α-morpholine methyltrimethoxysilane
Conditions | Yield |
---|---|
In neat (no solvent) at 0 - 5℃; for 5h; Mechanism; Inert atmosphere; | A 5.5% B 5.5% C 90% |
Conditions | Yield |
---|---|
SiCl4 and a small excess of methylnitrite in absence of moisture under cooling; slow heating at about 120°C;; | 80% |
tetrachlorosilane
tetramethylorthosilicate
Conditions | Yield |
---|---|
With methanol In methanol fast addn. of SiCl4 to a small excess of CH3OH (ice bath);; fractional distn.;; | 80% |
With CH3OH SiCl4 and CH3OH in presence of CH3COONa;; | 80% |
With CH3OH In methanol fast addn. of SiCl4 to a small excess of CH3OH (ice bath);; fractional distn.;; | 80% |
Conditions | Yield |
---|---|
Stage #1: methanol With Hexafluoropropene oxide at 20℃; Stage #2: triethanolamine In methanol for 1h; | A n/a B 71% |
Conditions | Yield |
---|---|
With copper(l) chloride; silicon at 250℃; under 159611 Torr; for 3h; Temperature; Pressure; Autoclave; | A 70% B n/a |
Conditions | Yield |
---|---|
With methanol In neat (no solvent) heating of Si at 1050°C in H2-atm. for 2 h in presence of Cu-oxide, Cu-halide or Cu-nitrate; dropwise addn. of CH3OH at 300°C;; | 50% |
With methanol; copper In neat (no solvent) heating of Cu and Si at 1050°C in H2-atm. for 2 h; dropwise addn. of CH3OH at 300°C;; | 50% |
With CH3OH; copper In neat (no solvent) heating of Cu and Si at 1050°C in H2-atm. for 2 h; dropwise addn. of CH3OH at 300°C;; | 50% |
Conditions | Yield |
---|---|
With hydrogenchloride | 38% |
Conditions | Yield |
---|---|
With amorphous silicon In paraffin oil at 300℃; for 6h; Reagent/catalyst; Solvent; Temperature; Inert atmosphere; Schlenk technique; | A 24% B 21% |
With copper; silicon at 259.9℃; under 742.6 Torr; for 5h; Product distribution; preheating at 623 K for 3 h; other reaction times, temperatures, and partial pressures; | |
With copper(l) chloride; silicon at 219.9℃; under 442.5 Torr; Kinetics; temperature- and pressure dependence; |
methanol
A
trimethoxysilane
B
tetramethylorthosilicate
C
dimethoxysilane
D
(dimethoxy)methylsilane
Conditions | Yield |
---|---|
With thiophene; silicon grains; copper(l) chloride at 379.85℃; under 315.025 Torr; | A n/a B n/a C n/a D 10% |
With thiophene; silicon grains; copper(l) chloride at 379.85 - 449.85℃; under 315.025 Torr; for 3h; |
methanol
tetraisocyanatosilane
A
tetramethylorthosilicate
B
silicon dimethoxy diisocyanate
C
silicon trimethoxy isocyanate
D
silicon methoxy triisocyanate
Conditions | Yield |
---|---|
at 25℃; |
Conditions | Yield |
---|---|
With tetrachlorosilane dann Erhitzen auf 120grad; |
phosphoric acid dimethyl ester-trimethoxysilanyl ester
tetramethylorthosilicate
Conditions | Yield |
---|---|
beim Erwaermen im Hochvakuum; |
(vinyl)trimethoxylsilane
(dimethoxymethyl)trimethoxysilane
A
tetramethylorthosilicate
Conditions | Yield |
---|---|
at 125℃; |
(Z)-2-Butene
(dimethoxymethyl)trimethoxysilane
A
tetramethylorthosilicate
B
r-1-methoxy-c-2,c-3-dimethylcyclopropane
C
r-1-methoxy-t-2,-t-3-dimethylcyclopropane
Conditions | Yield |
---|---|
at 125℃; |
2,3-Dimethyl-2-butene
(dimethoxymethyl)trimethoxysilane
A
tetramethylorthosilicate
B
ether, methyl 2,2,3,3-tetramethylcyclopropyl
Conditions | Yield |
---|---|
at 125℃; |
trans-2-Butene
(dimethoxymethyl)trimethoxysilane
A
tetramethylorthosilicate
r-1-methoxy-c-2,t-3-dimethylcyclopropane
Conditions | Yield |
---|---|
at 125℃; |
(dimethoxymethyl)trimethoxysilane
A
tetramethylorthosilicate
B
trimethoxy(methoxymethyl)silane
Conditions | Yield |
---|---|
With trimethoxysilane at 125℃; |
(dimethoxymethyl)trimethoxysilane
cyclohexene
A
tetramethylorthosilicate
B
exo-7-Methoxynorcaran
Conditions | Yield |
---|---|
at 125℃; |
methanol
trimethyl orthoformate
A
tetramethylorthosilicate
B
(dimethoxymethyl)trimethoxysilane
C
Bis--methoxy-methan
Conditions | Yield |
---|---|
With hexachlorodisilane |
(acetoxy)tri(methoxy)silane
A
tetramethylorthosilicate
B
(diacetoxy)(dimethoxy)silane
Conditions | Yield |
---|---|
Product distribution; Ambient temperature; prolonged storage; also heating; |
A
tetramethylorthosilicate
B
4-(2,6,6-Trimethyl-cyclohex-1-enyl)-butan-2-on
Conditions | Yield |
---|---|
With methanol; sodium hydroxide for 12h; Ambient temperature; Yield given; |
Conditions | Yield |
---|---|
With potassium hydroxide; silica gel at 226.9 - 326.9℃; under 720.06 Torr; Mechanism; | |
With potassium hydroxide; silica gel at 426.9℃; under 720.06 Torr; for 4.5h; |
sodium methylate
3-Chloropropyltrimethoxysilan
A
tetramethylorthosilicate
B
allyltrimethoxysilane
Conditions | Yield |
---|---|
at 190℃; Product distribution; other methoxides, var. temperature; substitution versus elimination products; |
methanol
ethene
A
trimethoxysilane
B
tetramethylorthosilicate
C
ethyltrimethoxysilane
D
ethyl dimethoxy silane
Conditions | Yield |
---|---|
With copper(l) chloride; silicon In toluene at 159.9℃; under 3040 Torr; for 3h; Product distribution; Mechanism; also ethanol; other solvents; effect of the amount of methanol on the silicon conversion and selectivity for organomethoxysilanes; var. pressures, times and temperatures; |
Conditions | Yield |
---|---|
byproducts: SiF(OCH3)3; | 100% |
L-enterobactin
tetramethylorthosilicate
Conditions | Yield |
---|---|
In methanol at 20℃; for 24h; | 100% |
tetramethylorthosilicate
1-amino-3-methylbenzene
benzoic acid
A
benzoic acid methyl ester
B
3'-methylbenzanilide
Conditions | Yield |
---|---|
In toluene at 110℃; for 24h; Molecular sieve; Inert atmosphere; | A 27% B 100% |
tetramethylorthosilicate
C30H27N3O14
Conditions | Yield |
---|---|
In methanol at 20℃; for 24h; | 100% |
Conditions | Yield |
---|---|
In methanol at 20℃; for 24h; | 100% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride at 80℃; for 0.5h; | 99% |
Conditions | Yield |
---|---|
Stage #1: 7-Azaindole With n-butyllithium In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; Cooling with ice; Stage #2: tetramethylorthosilicate In tetrahydrofuran at 0 - 20℃; for 8h; Inert atmosphere; | 98% |
tetramethylorthosilicate
carbon dioxide
aniline
N-phenyl methyl carbamate
Conditions | Yield |
---|---|
With di(n-butyl)tin oxide In toluene at 135℃; under 52505.3 Torr; for 5.1h; Reagent/catalyst; Glovebox; Autoclave; | 98% |
With 2,3,4,5,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium acetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Catalytic behavior; Mechanism; Reagent/catalyst; Temperature; Pressure; Autoclave; Inert atmosphere; Ionic liquid; Green chemistry; chemoselective reaction; | 92% |
With 1,10-Phenanthroline; zinc diacetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Catalytic behavior; Reagent/catalyst; Temperature; Inert atmosphere; Autoclave; Green chemistry; chemoselective reaction; | 84 %Chromat. |
With 2,3,4,5,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium acetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Reagent/catalyst; Temperature; Pressure; Solvent; Autoclave; Sealed tube; | 96 %Chromat. |
tetramethylorthosilicate
Conditions | Yield |
---|---|
Stage #1: 1-isopropyldecahydro quinoxaline With n-butyllithium In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; Cooling with ice; Stage #2: tetramethylorthosilicate In tetrahydrofuran at 0 - 20℃; for 8h; Inert atmosphere; | 97.7% |
Conditions | Yield |
---|---|
Stage #1: C15H28N2 With n-butyllithium In tetrahydrofuran at 20℃; for 1h; Inert atmosphere; Cooling with ice; Stage #2: tetramethylorthosilicate In tetrahydrofuran at 0 - 20℃; for 6h; Inert atmosphere; | 97.5% |
Conditions | Yield |
---|---|
Stage #1: C15H16N2 With n-butyllithium In tetrahydrofuran at 20℃; for 1h; Inert atmosphere; Cooling with ice; Stage #2: tetramethylorthosilicate In tetrahydrofuran at 0 - 20℃; for 6h; Inert atmosphere; | 97.1% |
tetramethylorthosilicate
4-nitrobenzaldehdye
4-nitrobenzoic acid methyl ester
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride; (t-Bu2POH)2PdCl2 In acetonitrile at 50℃; for 24h; | 97% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride; (t-Bu2POH)2PdCl2 In acetonitrile at 50℃; for 24h; | 97% |
tetramethylorthosilicate
carbon dioxide
cyclohexylamine
cyclohexyl-carbamic acid methyl ester
Conditions | Yield |
---|---|
With di(n-butyl)tin oxide In toluene at 135℃; under 52505.3 Torr; Glovebox; Autoclave; | 97% |
With 1,10-Phenanthroline; zinc diacetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Inert atmosphere; Autoclave; Green chemistry; chemoselective reaction; | 80% |
With 2,3,4,5,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium acetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Autoclave; Inert atmosphere; Ionic liquid; Green chemistry; chemoselective reaction; | 76% |
tetramethylorthosilicate
carbon dioxide
4-methoxy-aniline
methyl N-(4-methoxyphenyl)carbamate
Conditions | Yield |
---|---|
With 1,10-Phenanthroline; zinc diacetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Inert atmosphere; Autoclave; Green chemistry; chemoselective reaction; | 96% |
With 2,3,4,5,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium acetate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Autoclave; Inert atmosphere; Ionic liquid; Green chemistry; chemoselective reaction; | 96% |
With potassium carbonate In acetonitrile at 150℃; under 37503.8 Torr; for 24h; Autoclave; Sealed tube; | 91% |
With di(n-butyl)tin oxide In toluene at 135℃; under 52505.3 Torr; for 5.1h; Glovebox; Autoclave; | 71% |
tetramethylorthosilicate
Hexamethyldisiloxane
A
1,1,1,5,5,5-hexamethyl-3-trimethylsiloxy-3-hydroxytrisiloxane
B
1,1,1,5,5,5-hexamethyl-3,3-bis(trimethylsiloxy)trisiloxane
C
1,1,1,5,5,5-hexamethyl-3-trimethylsiloxy-3-methoxytrisiloxane
Conditions | Yield |
---|---|
Stage #1: Hexamethyldisiloxane With methanol; sulfuric acid at 5 - 10℃; for 1h; Stage #2: tetramethylorthosilicate at 5 - 10℃; for 1.5h; Stage #3: With sulfuric acid; water more than 3 stages; | A n/a B 94.5% C n/a |
tetramethylorthosilicate
hexanal
allyl-trimethyl-silane
4-methoxy-1-nonene
Conditions | Yield |
---|---|
trimethylsilyl iodide In dichloromethane 1.) -78 deg C, 15 min, 2.) 0 deg C, 3 h; | 94% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride at 80℃; for 2h; | 94% |
tetramethylorthosilicate
2,4-Difluoronitrobenzene
2,4-dimethoxynitrobenzene
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride at 80℃; for 2h; | 94% |
Conditions | Yield |
---|---|
With 1-bromo-butane; magnesium for 5h; Inert atmosphere; Reflux; | 93.43% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View