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inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
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inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou
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inquiryfactory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents
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inquiry4 4'-BIS(TRIETHOXYSILYL)-1 1'-BIPHENYL Application:4 4'-BIS(TRIETHOXYSILYL)-1 1'-BIPHENYL
Appearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
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inquiry4,4'-BIS(TRIETHOXYSILYL)-1 1'-BIPHENYLAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquirytetraethoxy orthosilicate
4-(4-bromophenyl)bromobenzene
4,4'-bis(triethoxysilyl)-1,1'-biphenyl
Conditions | Yield |
---|---|
With magnesium In tetrahydrofuran at 75℃; for 120h; | 34% |
With magnesium In tetrahydrofuran at 74.85℃; for 120h; | 16% |
4,4'-bis(triethoxysilyl)-1,1'-biphenyl
1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol
Conditions | Yield |
---|---|
With tetramethyl ammoniumhydroxide In methanol; ethanol at 0 - 5℃; for 24h; Cooling with ice; | 75.9% |
1.4-dibromobenzene
4,4'-bis(triethoxysilyl)-1,1'-biphenyl
Conditions | Yield |
---|---|
Stage #1: 1.4-dibromobenzene With n-butyllithium In diethyl ether at -78℃; for 1.25h; Inert atmosphere; Stage #2: 4,4'-bis(triethoxysilyl)-1,1'-biphenyl In diethyl ether for 12h; Inert atmosphere; Cooling; | 60% |
trimethyloctadecylammonium chloride
4,4'-bis(triethoxysilyl)-1,1'-biphenyl
Conditions | Yield |
---|---|
With sodium hydroxide In water at 19.84 - 94.84℃; for 42h; |
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