The 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:640-21-1
Min.Order:1
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:640-21-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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:640-21-1
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd
Cas:640-21-1
Min.Order:1 Kilogram
FOB Price: $50.0 / 100.0
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:640-21-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1,2-DIBROMO-3,3-DIMETHYLBUTANE CAS:640-21-1 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 high quality orga
Cas:640-21-1
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:640-21-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:640-21-1
Min.Order:0
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:640-21-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryProduct Name: 1,2-DIBROMO-3,3-DIMETHYLBUTANE Synonyms: 1,2-DIBROMO-3,3-DIMETHYLBUTANE;3,3-DIMETHYL-1,2-DIBROMOBUTANE CAS: 640-21-1 MF: C6H12Br2 MW: 243.97 Appearance:white powder Storage:Room temperature Package:bag Application:Organic Chem
Cas:640-21-1
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
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:640-21-1
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:640-21-1
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:640-21-1
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
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:640-21-1
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
Cas:640-21-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re
Ansciep 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:640-21-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,2-DIBROMO-3,3-DIMETHYLBUTANE Application:1,2-DIBROMO-3,3-DIMETHYLBUTANE
Butane,1,2-dibromo-3,3-dimethyl- cas 640-21-1Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:640-21-1
Min.Order:0
Negotiable
Type:Other
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:640-21-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,2-DIBROMO-3,3-DIMETHYLBUTANEAppearance:ask Storage:keep in dry and cool condition Package:foil aluminium bag/vacuum packing Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport
Cas:640-21-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
1,Best Quality: Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so
Cas:640-21-1
Min.Order:10 Gram
FOB Price: $1.0 / 1001.0
Type:Trading Company
inquiryConditions | Yield |
---|---|
With bromine for 0.133333h; Phase-vanishing reaction with phase screen; Neat (no solvent); Darkness; | 94% |
With carbon tetrabromide; bromine In tetrachloromethane; ethanol 1.) -20 deg C, 2.5 h; 2.) up to r. t., overnight; | 89% |
With bromine In hexane at 20℃; | 88% |
tert-butylethylene
N-bromo-1,8-naphthalenedicarboximide
A
1,2-dibromo-3,3-dimethylbutane
B
N-(2-bromo-3,3-dimethylbutyl)-1,8-naphthalenedicarboximide
Conditions | Yield |
---|---|
In dichloromethane at 17℃; Irradiation; | A 4.1% B 68% |
methanol
tert-butylethylene
A
1,2-dibromo-3,3-dimethylbutane
B
2-bromo-1-methoxy-3,3-dimethyl-butane
Conditions | Yield |
---|---|
With bromine unter Lichtausschluss; |
tert-butylethylene
A
1,4-dibromo-2,3-bis-bromomethyl-but-2-ene
B
3,3-dimethylbutyl bromide
C
1,2-dibromo-3,3-dimethylbutane
Conditions | Yield |
---|---|
With bromine | |
With bromine for 2h; | |
With bromine In chloroform at -78℃; for 5h; |
N-Bromosuccinimide
tert-butylethylene
A
Succinimide
B
N-(2-bromo-3,3.-dimethyl-1-butyl)succinimide
C
1,2-dibromo-3,3-dimethylbutane
Conditions | Yield |
---|---|
In dichloromethane; benzene at 14 - 15℃; Irradiation; | A 0.58 mmol B 0.12 mmol C 0.33 mmol |
2,2-dimethyl-3-butyne
A
3,3-dimethylbutyl bromide
B
1,2-dibromo-3,3-dimethylbutane
Conditions | Yield |
---|---|
With organoaluminiumhydride; water; bromine 2) -40 to 20 deg C; Yield given. Multistep reaction. Yields of byproduct given; |
tert-butylethylene
ethanol
A
1,2-dibromo-3,3-dimethylbutane
B
2-bromo-1-ethoxy-3,3-dimethylbutane
Conditions | Yield |
---|---|
With 2,6-di-tert-butyl-4-methyl-phenol; N,N'-dibromo-2,5-piperazinedione (NBP) In dichloromethane for 0.5h; Ambient temperature; Irradiation; | A 20 % Chromat. B 11 % Chromat. |
tert-butylethylene
C16H36N(1+)*C4H4BrNO2*Br(1-)
1,2-dibromo-3,3-dimethylbutane
Conditions | Yield |
---|---|
With C16H36N(1+)*C4H4BrNO2*Br(1-) In acetonitrile for 3h; Mechanism; Heating; var. bromino reagent; |
tert-butylethylene
A
1,2-dichloro-3,3-dimethyl-butane
B
1,2-dibromo-3,3-dimethylbutane
Conditions | Yield |
---|---|
With bromine chloride In dichloromethane at 0℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
With 18-crown-6 ether; potassium tert-butylate In Petroleum ether at 60℃; for 2h; | 91% |
With potassium hydroxide; tetraoctyl ammonium bromide In Petroleum ether at 90℃; for 6h; | 86% |
With potassium tert-butylate; 18-crown-6 ether In Petroleum ether | 84% |
With potassium hydroxide; 2,5-dimethyl-2,5-hexanediol at 100℃; for 0.75h; | 80% |
With potassium tert-butylate Heating; |
1,2-dibromo-3,3-dimethylbutane
A
2,2-dimethyl-3-butyne
B
2-Bromo-3,3-dimethyl-1-butene
C
1-bromo-3,3-dimethylbut-1-ene
Conditions | Yield |
---|---|
With potassium hydroxide; Aliquat 336 In xylene Heating; | A 91% B n/a C n/a |
1,2-dibromo-3,3-dimethylbutane
carbon monoxide
benzene
2,2,3,3-Tetramethyl-1-indanon
Conditions | Yield |
---|---|
With aluminium trichloride at 19 - 21℃; for 2.5h; |
Conditions | Yield |
---|---|
With hydrogenchloride; ammonia; lithium Yield given. Multistep reaction. Yields of byproduct given; |
Conditions | Yield |
---|---|
at 200℃; |
1,2-dibromo-3,3-dimethylbutane
Bromoform
1,1,2-tribromo-2-(tert-butyl)cyclopropane
Conditions | Yield |
---|---|
Stage #1: 1,2-dibromo-3,3-dimethylbutane With sodium methylate In dichloromethane for 24h; Heating; Stage #2: Bromoform With sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride at 20℃; | 6.97 g |
1,2-dibromo-3,3-dimethylbutane
A
2-Bromo-3,3-dimethyl-1-butene
B
(E)-1-bromo-3,3-dimethyl-1-butene
Conditions | Yield |
---|---|
With sodium methylate In dichloromethane for 24h; Heating; Title compound not separated from byproducts; |
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