fine chemical Application:fine chemical
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Other
inquiryAs 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:5931-17-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:5931-17-9
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufactu
Cas:5931-17-9
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:5931-17-9
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:5931-17-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1,3-BIS(4-HYDROXYBUTYL)TETRAMETHYLDISILOXANE CAS:5931-17-9 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in hi
Cas:5931-17-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:5931-17-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1,3-Bis(4-hydroxybutyl)tetramethyldisiloxane CAS: 5931-17-9 Specification Items Standards Results Appearance White or off-white powder Off-white powder Identification By HPLC Complies Melting Po
Cas:5931-17-9
Min.Order:1 Kilogram
Negotiable
Type:Other
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
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:5931-17-9
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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:5931-17-9
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:5931-17-9
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryEstablished in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
Cas:5931-17-9
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Trading Company
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
Cas:5931-17-9
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
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:5931-17-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:5931-17-9
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryHigh quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality produc
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryShandong Mopai Biotechnology 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 chemicals. W
Cas:5931-17-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:5931-17-9
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis:
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
Cas:5931-17-9
Min.Order:1 Kilogram
Negotiable
Type:Other
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:5931-17-9
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHunan 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
Cas:5931-17-9
Min.Order:1 Gram
Negotiable
Type:Manufacturers
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
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Other
inquiryADVANTAGE 1.Professional: More than 10 years chemical exporting experience. We have produced chemical more than fifteen years, 95% products are for export . More than 10 years chemical exporting experience. Good and stabilized factory price. 2.
Cas:5931-17-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry4-(dimethylsiloxy)-1-butene
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
Stage #1: 4-(dimethylsiloxy)-1-butene With platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex; triethylamine In isopropyl alcohol at 90℃; for 10h; Stage #2: With hydrogenchloride; water at 90℃; for 10h; | 86.37% |
With sodium hydroxide |
1,3-bis(4-trimethylsiloxybutyl)tetramethyldisiloxane
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
With methanol for 3h; Ambient temperature; | 84% |
4-acetoxy-n-butyldimethylchlorosilane
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
With acetic acid In water; toluene pH=2; | 83.7% |
2,2-Dimethyl-1-oxa-2-silacyclohexan
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
With potassium hydroxide; acetylene In water at 110℃; under 11250.9 Torr; for 3h; | 50% |
With hydrogenchloride; acetone |
1,3-bis(4-trimethylsiloxybutyl)tetramethyldisiloxane
A
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
B
δ-hydroxybutylpentamethyldisiloxane
Conditions | Yield |
---|---|
With hydrogenchloride In diethyl ether at 25℃; for 15h; | A 47% B 29% |
2,2-Dimethyl-1-oxa-2-silacyclohexan
Hexamethyldisiloxane
A
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
B
δ-hydroxybutylpentamethyldisiloxane
Conditions | Yield |
---|---|
With potassium hydroxide; acetylene In water at 120℃; under 12000.9 Torr; for 4h; | A 3.5 g B 37% |
tetrahydrofuran
dimethylsilicon dichloride
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
(i) MgBr2, Mg, (ii) aq. HCl; Multistep reaction; |
2,2-Dimethyl-1-oxa-2-silacyclohexan
Trimethylsilanol
A
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
B
δ-hydroxybutylpentamethyldisiloxane
Conditions | Yield |
---|---|
With hydrogenchloride at 90℃; for 2h; | A 1.1 g B n/a |
With hydrogenchloride at 90℃; for 2h; | A n/a B 3.5 g |
chloro(4-chlorobutoxy)dimethylsilane
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium 2: aqueous HCl; acetone View Scheme |
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
dimethoxy(methyl)phenylsilane
A
methanol
Conditions | Yield |
---|---|
With hydrogenchloride In water for 4.5h; Heating / reflux; | A n/a B 100% |
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
C26H42O9Si2
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at -20 - 20℃; Inert atmosphere; | 76% |
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
C12H28I2OSi2
Conditions | Yield |
---|---|
With 1H-imidazole; iodine; triphenylphosphine In diethyl ether; acetonitrile at 0 - 20℃; for 1h; | 70% |
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
p-toluenesulfonyl chloride
C26H42O7S2Si2
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 0℃; for 2h; | 70% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; | 67% |
Hexamethyldisiloxane
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
δ-hydroxybutylpentamethyldisiloxane
Conditions | Yield |
---|---|
With acetylene at 150℃; for 5h; | 10 g |
Conditions | Yield |
---|---|
With sulfonic acid |
Conditions | Yield |
---|---|
In xylene for 12h; Heating / reflux; |
dimethyldimethoxysilan
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
dimethoxy(diphenyl)silane
A
methanol
Conditions | Yield |
---|---|
With hydrogenchloride; water for 2h; Heating / reflux; |
dimethyldimethoxysilan
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
dimethoxy(diphenyl)silane
A
methanol
Conditions | Yield |
---|---|
With hydrogenchloride In water for 2h; Heating / reflux; |
dimethyldimethoxysilan
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
dimethoxy(diphenyl)silane
Conditions | Yield |
---|---|
Stage #1: dimethyldimethoxysilan; 1,3-bis(4-hydroxybutyl)tetramethyldisiloxane; dimethoxy(diphenyl)silane With hydrogenchloride In water for 1h; Heating / reflux; Stage #2: In water for 1h; Heating / reflux; |
dimethyldimethoxysilan
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
dimethoxy(methyl)phenylsilane
hydroxybutyl-terminated copolymer of dimethylsiloxane and phenylmethylsiloxane with a 1:3 ratio of total methyl to phenyl attached to silicon and molecular weight of 4000
Conditions | Yield |
---|---|
Stage #1: dimethyldimethoxysilan; 1,3-bis(4-hydroxybutyl)tetramethyldisiloxane; dimethoxy(methyl)phenylsilane With hydrogenchloride In water for 1h; Heating / reflux; Stage #2: In water for 1h; Heating / reflux; |
1,3-bis(4-hydroxybutyl)tetramethyldisiloxane
Propiolic acid
C18H30O5Si2
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at -20℃; |
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