Dayangchem's 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. DayangChem can provide different quantities
Cas:1996-23-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity ≥99% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package c
Cas:1996-23-2
Min.Order:1 Kilogram
FOB Price: $5.0 / 10.0
Type:Trading Company
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:1996-23-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryTETRAFLUOROBENZENE-1,2-DIOL CAS:1996-23-2 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 organ
Cas:1996-23-2
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:1996-23-2
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:1996-23-2
Min.Order:0
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:1996-23-2
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:1996-23-2
Min.Order:10 Gram
FOB Price: $100.0
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:1996-23-2
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryMelting point 68-69 ° C (Subl.) Boiling point 243.6 ± 35.0 ° C (predicted) Density 1.765 ± 0.06g/cm3 (predicted) Storage condition sealeddry, 2-8 ° C Acidity coefficient (PKA) 6.29 ± 0.33 (predicted) Storage:room
Cas:1996-23-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirybulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
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:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryTETRAFLUORO-1,2-BENZENEDIOLAppearance: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
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1996-23-2 Application:intermediate
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryThe factory supplies Application:manufacturing supplies
Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
high 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:any port in China
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Trading Company
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:any port in China
Cas:1996-23-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
How May We Serve You We can Supply HPLC\HMMR\MS report for you ,pls feel free to contact us! Capability on chemical synthesis ● Shanghai High-Tech Enterprises ● Strong R&D Team from USA, Japan, Korea ● 65000M2+ Facto
Cas:1996-23-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquirypyridine
Hexafluorobenzene
ethanol
A
2,3,4,5,6-pentafluorophenol
B
ethoxy pentafluorobenzene
C
3,4,5,6-tetrafluorobenzene-1,2-diol
D
1,4,5,6-Tetrafluor-2,3-diethoxy-benzol
tetrahydrofuran
tetrafluoro-1,2-benzoquinone
A
2,3,4,5-tetrafluoro-6-((tetrahydrofuran-2-yl)oxy)phenol
B
3,4,5,6-tetrafluorobenzene-1,2-diol
Conditions | Yield |
---|---|
for 0.5h; Irradiation; |
diethyl ether
tetrafluoro-1,2-benzoquinone
A
2-(1-ethoxyethoxy)-3,4,5,6-tetrafluorophenol
B
3,4,5,6-tetrafluorobenzene-1,2-diol
Conditions | Yield |
---|---|
for 0.5h; Irradiation; |
3,4,5,6-tetrafluorobenzene-1,2-diol
pentafluorophenylboronic acid
2-(pentafluorophenyl)-tetrafluoro-1,3,2-benzodioxaborole
Conditions | Yield |
---|---|
In toluene byproducts: water; mixt. heated to reflux; water removed by azeotropic distillation; after 4 h solvent evapd. under reduced pressure; residue sublimed at 110°C/0.1 mm Hg; | 87% |
In toluene under N2; C6F4(OH)2 and C6F5B(OH)2 in toluene heated to reflux for 12 h using Dean-Stark apparatus; volatiles removed under reduced pressure; sublimed at 80°C; takenup in pentane; filtered; cryst. at -35°C; elem. anal.; | 42% |
In toluene byproducts: H2O; (Ar or under vac.); mixed in toluene; heated to reflux; water removed byazeotropic distillation; after 4 h, solvent evapd. under reduced pressu re; sublimed at 110°C; |
Conditions | Yield |
---|---|
In tetrahydrofuran at 22℃; for 0.5h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
In tetrahydrofuran byproducts: NaOCOCH3, NaCl, H2O; (N2); stirring a suspn. of ruthenium complex, ligand, NaOH in THF for 1 d at room temp.; drying in vac., extn. with THF, slow diffusion of hexane; elem. anal.; | 72% |
tripropyl arsenite
3,4,5,6-tetrafluorobenzene-1,2-diol
Conditions | Yield |
---|---|
at 150 - 160℃; for 2h; | 64.8% |
Conditions | Yield |
---|---|
In methanol for 12h; Inert atmosphere; Schlenk technique; | 60% |
Conditions | Yield |
---|---|
With arsenic trichloride In diethyl ether for 2h; Ambient temperature; | 59% |
tetrachlorosilane
3,4,5,6-tetrafluorobenzene-1,2-diol
Conditions | Yield |
---|---|
In acetonitrile at 0 - 25℃; for 20h; | 53% |
Conditions | Yield |
---|---|
In acetonitrile (Ar); heating (50°C); crystn. (5°C, 3 d), recrystn. (benzene/MeCN), washing (benzene); | 30.8% |
3,4,5,6-tetrafluorobenzene-1,2-diol
2,4-difluorophenylboronic acid
2-(2,4-difluorophenyl)-tetrafluoro-1,3,2-benzodioxaborole
Conditions | Yield |
---|---|
In toluene byproducts: H2O; (Ar or under vac.); mixed in toluene; heated to reflux; water removed byazeotropic distillation; after 4 h, solvent evapd. under reduced pressu re; sublimed at 125°C; |
3,4,5,6-tetrafluorobenzene-1,2-diol
2-(trifluoromethyl)phenylboronic acid
2-(2-trifluoromethyl phenyl)-tetrafluoro-1,3,2-benzodioxaborole
Conditions | Yield |
---|---|
In toluene byproducts: H2O; (Ar or under vac.); mixed in toluene; heated to reflux; water removed byazeotropic distillation; after 4 h, solvent evapd. under reduced pressu re; sublimed at 110°C; |
(2,5-di(trifluoromethyl)phenyl)boronic acid
3,4,5,6-tetrafluorobenzene-1,2-diol
2,5-bis(trifluoromethyl)phenyl-tetrafluoro-1,3,2-benzodioxaborole
Conditions | Yield |
---|---|
In toluene byproducts: H2O; (Ar or under vac.); mixed in toluene; heated to reflux; water removed byazeotropic distillation; after 4 h, solvent evapd. under reduced pressu re; sublimed at 105-110°C; |
3,4,5,6-tetrafluorobenzene-1,2-diol
4-fluoroboronic acid
2-(4-fluorophenyl)-tetrafluoro-1,3,2-benzodioxaborole
Conditions | Yield |
---|---|
In toluene byproducts: H2O; (Ar or under vac.); mixed in toluene; heated to reflux; water removed byazeotropic distillation; after 4 h, solvent evapd. under reduced pressu re; sublimed at 135°C; |
3,4,5,6-tetrafluorobenzene-1,2-diol
ethyl 4,5,6,7-tetrafluorobenzo[d]-1,3-dioxole-2-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / nitromethane / -30 °C 2: benzene / 8 h / Reflux View Scheme |
3,4,5,6-tetrafluorobenzene-1,2-diol
2,3,4,5-tetrafluoro-6-(1-hexyl-1H-indol-3-yl)-6-hydroxycyclohexa-2,4-dienone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / nitromethane / -30 °C 2: benzene / 0.17 h / 20 °C View Scheme |
3,4,5,6-tetrafluorobenzene-1,2-diol
2,3,4,5-tetrafluoro-6-hydroxy-6-(1-methyl-1H-pyrrol-2-yl)-cyclohexa-2,4-dienone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / nitromethane / -30 °C 2: chloroform-d1 / 0.03 h / 20 °C View Scheme |
3,4,5,6-tetrafluorobenzene-1,2-diol
C7H4F4O3
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / nitromethane / -30 °C 2: chloroform-d1 / 0 °C View Scheme |
3,4,5,6-tetrafluorobenzene-1,2-diol
C8H7F3O4
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: nitric acid / nitromethane / -30 °C 2: chloroform-d1 / 0 °C 3: chloroform-d1 / 0 - 20 °C View Scheme |
3,4,5,6-tetrafluorobenzene-1,2-diol
C6F4O2*C12H18
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / nitromethane / -30 °C 2: chloroform / 1 h View Scheme |
Conditions | Yield |
---|---|
With nitric acid In nitromethane at -30℃; |
Conditions | Yield |
---|---|
With potassium carbonate In water; acetone for 3h; Solvent; Time; Reflux; Inert atmosphere; | 1.36 g |
Conditions | Yield |
---|---|
With caesium carbonate In water; acetone for 40h; Reflux; | 0.181 g |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; for 1h; Inert atmosphere; |
Conditions | Yield |
---|---|
With caesium carbonate In acetone at 30℃; for 8h; Inert atmosphere; |
2-dimethylamino-4,6-dichloro-1,3,5-triazine
3,4,5,6-tetrafluorobenzene-1,2-diol
C22H12F8N8O4
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: caesium carbonate / acetone / 8 h / 30 °C / Inert atmosphere 2: caesium carbonate / acetone; water / 40 h / Reflux View Scheme |
Conditions | Yield |
---|---|
In dichloromethane for 0.5h; Inert atmosphere; |
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