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:75-21-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryHebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. After many years of efforts, we have established stable
high quality Appearance:white powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
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
Our 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
ETHYLENE OXIDE Basic information Product Name: ETHYLENE OXIDE Synonyms: DIMETHYLENE OXIDE;ETHYLENE OXIDE;Epoxyethane;1,2-EPOXYETHANE;OXIRANE;1,2-Epoxyaethan;Aethyle
Cas:75-21-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquirybest price,best quality and fast delivery assurance available in sample product and customization with years of export experience along with excellent quality, advanced services and competitive prices the quality of products conform u
Henan 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
1,2-Epoxy ethane CAS: 75-21-8 Specification mp −111 °c(lit.) bp 10.7 °c(lit.) density 0.882 g/ml at 25 °c(lit.) refractive index n20/d 1.3597(lit.) fp <-17.7℃
Hangzhou 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
Zibo 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
supplier in China Appearance:clear colorless gas with an ethereal odor Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Sterilization disinfect
Product 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,
Hangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
high 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
Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
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
75-21-8 ETHYLENE OXIDE Application:75-21-8 ETHYLENE OXIDE
1,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
Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home an
Cas:75-21-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry75-21-8 ETHYLENE OXIDEAppearance:powder Storage:room tempurature Package:As required Application:medical Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL for large amount
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
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:75-21-8
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryHENAN SUNLAKE ENTERPRISE CORPORATION Our company advantages: 1、The highest quality with the competitive price. 2、Professional human services. 3、The fastest and safest delivery service. 4、The faster and safest delivery service. 5、The hig
Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers. Our advantages:1, High quality with competitive price:1) Standard:BP/USP/EP/Enterprise standard2) All Purity≥99%3) We are manufacturer
Before-Sale Service:---Any inquiries will be replied within 12 hours.---Golden Manufactory under?ISO/GMP?with?large stock.---Dedication to quality,We?have?strict?quality?control?system.?---OEM/ODM Available.---Sample is available for your evaluation
Qingdao Sigma Chemical Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. Our Labo
Cas:75-21-8
Min.Order:1 Gram
FOB Price: $1.0
Type:Trading Company
inquiryConditions | Yield |
---|---|
With sodium hydroxide at 60 - 70℃; Reagent/catalyst; Temperature; | 97.97% |
With -base at 25℃; | |
With potassium hydroxide |
Conditions | Yield |
---|---|
With potassium hydride In [D3]acetonitrile at 0 - 45℃; for 10.6667h; Inert atmosphere; | A n/a B 96% |
Conditions | Yield |
---|---|
With nitrogen; chloroethane; carbon dioxide; oxygen; silver and cesium in alpha-aluminum oxide support at 225℃; under 12001.2 Torr; Product distribution / selectivity; Microchannel reactor; | 92.7% |
With oxygen at 225℃; Reagent/catalyst; Temperature; Inert atmosphere; | 21.28% |
With sulfur dioxide; phosphorus-vanadium-titanium catalyst KFK-77 at 400℃; | 20% |
Conditions | Yield |
---|---|
With potassium hydroxide; sodium formate; Aliquat 336 at 105℃; for 0.25h; | 70% |
ethyl acetoacetate
ethylene dibromide
A
oxirane
B
ethyl 1-acetylcyclopropanecarboxylate
C
ethylene glycol
Conditions | Yield |
---|---|
With tetraethylammonium perchlorate In N,N-dimethyl-formamide electrolysis; | A n/a B 22% C n/a |
ethylene dibromide
diethyl malonate
A
oxirane
B
diethyl cyclopropane-1,1-dicarboxylate
C
ethylene glycol
Conditions | Yield |
---|---|
With tetraethylammonium perchlorate In N,N-dimethyl-formamide electrolysis; | A n/a B 13% C n/a |
ethylene dibromide
malonic acid dimethyl ester
A
oxirane
B
dimethyl 1,1-cyclopropanedicarboxylate
C
ethylene glycol
Conditions | Yield |
---|---|
With tetraethylammonium perchlorate In N,N-dimethyl-formamide electrolysis; | A n/a B 11% C n/a |
Conditions | Yield |
---|---|
With oxygen at 310℃; | 1.2% |
With oxygen; Ni-Nb-O mixed oxides on γ-alumina (15% Ni, 4.02% Nb); Ag/γ-alumina (15% Ag) at 350℃; under 7500.75 Torr; Product distribution / selectivity; | |
With oxygen; Ag/γ-alumina (15% Ag) at 350℃; under 7500.75 Torr; Product distribution / selectivity; |
[1,3]-dioxolan-2-one
A
oxirane
B
methylammonium carbonate
Conditions | Yield |
---|---|
at 200℃; Pyrolysis; |
Conditions | Yield |
---|---|
With iodine; 1,1,2,2-tetrachloroethane |
Conditions | Yield |
---|---|
With sodium oxide at 180℃; |
Conditions | Yield |
---|---|
With silver(l) oxide at 150℃; |
Conditions | Yield |
---|---|
With sodium hydroxide |
Conditions | Yield |
---|---|
With silver(l) oxide at 250℃; | |
With sodium oxide at 180℃; |
Conditions | Yield |
---|---|
at 25℃; |
Conditions | Yield |
---|---|
With hydrazine |
Conditions | Yield |
---|---|
With methane; water; oxygen at 37.5℃; Mechanism; Product distribution; Thermodynamic data; Irradiation; ΔH0; |
Conditions | Yield |
---|---|
at 159℃; for 5.5h; |
Conditions | Yield |
---|---|
In water Quantum yield; Irradiation; |
epoxybutene
2-(phenylselenyl)ethanol
A
oxirane
B
(+/-)-1-(phenylseleno)-but-3-en-2-ol
Conditions | Yield |
---|---|
at 159℃; for 5.5h; |
epoxybutene
2-diphenylphosphinoethanol
A
oxirane
B
ethene
C
acetaldehyde
Conditions | Yield |
---|---|
In chlorobenzene at 100℃; for 1h; Mechanism; a new decomposition path of reaction; |
glycidyl n-butyl ether
2-(phenylselenyl)ethanol
A
oxirane
B
1-butoxy-3-(phenylselanyl)propan-2-ol
Conditions | Yield |
---|---|
at 159℃; for 5.5h; |
Conditions | Yield |
---|---|
vanadia at 350℃; flow-type reactor; | 0.2 g |
vanadia at 350℃; Product distribution; flow-type reactor; | 0.2 g |
styrene oxide
2-(phenylselenyl)ethanol
A
oxirane
B
1-phenyl-2-(phenylselanyl)ethanol
Conditions | Yield |
---|---|
at 159℃; for 5.5h; |
styrene oxide
2-diphenylphosphinoethanol
A
oxirane
B
styrene
C
ethene
D
acetaldehyde
E
acetophenone
Conditions | Yield |
---|---|
In chlorobenzene at 150℃; for 1h; Mechanism; a new decomposition path of reaction; |
β-Propiolactone
A
oxirane
B
methane
C
ethene
D
acetaldehyde
Conditions | Yield |
---|---|
With mercury at 100℃; Product distribution; Irradiation; other reagent, other temperature; |
Conditions | Yield |
---|---|
With oxygen at 500℃; under 15 Torr; for 0.00833333h; Kinetics; Rate constant; Mechanism; variation of temperature, and pressure; |
Conditions | Yield |
---|---|
With oxygen for 0.5h; Product distribution; also without CF4; | A 1.2 mol B 6.7 mol |
t-butyl 2-hydroxyethyl peroxide
A
oxirane
B
glycolic Acid
C
methane
D
Glycolaldehyde
E
acetone
F
tert-butyl alcohol
Conditions | Yield |
---|---|
In water at 99.9 - 149.9℃; Thermodynamic data; Kinetics; Product distribution; further solvent; various pH; in the presence of FeCl2 also; in glass and steel test tube in the presence of HCl; activation energy; |
Conditions | Yield |
---|---|
With isopropoxydiisobutylaluminum In hexane Product distribution; Ambient temperature; other oxiranes; var. Lewis acids; var. solvents; var. temperatures; | 100% |
With aluminum isopropoxide 1.) RT, 2 h, 2.) RT, 15 h; Yield given. Multistep reaction; |
oxirane
3-bromo-2,4-dimethylpenta-1,3-diene
3-isopropenyl-4-methyl-pent-3-en-1-ol
Conditions | Yield |
---|---|
Stage #1: 3-bromo-2,4-dimethylpenta-1,3-diene With tert.-butyl lithium In tetrahydrofuran at -78℃; for 0.166667h; Metallation; Stage #2: oxirane In tetrahydrofuran at -78 - 0℃; Substitution; | 100% |
Stage #1: 3-bromo-2,4-dimethylpenta-1,3-diene With tert.-butyl lithium In tetrahydrofuran; pentane at -78℃; for 0.5h; Stage #2: oxirane In tetrahydrofuran; pentane at -78 - 21℃; for 2h; | 83% |
With tert.-butyl lithium -78 deg C to 21 deg C; | 78% |
Conditions | Yield |
---|---|
With 3-(2-hydroxylethyl)-1-(3-aminopropyl)imidazolium bromide grafted onto divinylbenzene polymer (PDVB-HEIMBr) at 140℃; under 15001.5 Torr; for 3h; Autoclave; | 100% |
With bis[(1R,2R)-N,N'-bis(3,5-di-tert-butyl-salicylidene)cyclohexane-1,2-diaminoaluminium(III)]oxide; tetrabutylammomium bromide at 26℃; under 2280.15 Torr; for 24h; | 100% |
With choline chloride; zinc dibromide at 110℃; under 11251.1 Torr; for 1h; Autoclave; neat (no solvent); | 100% |
oxirane
N-(1-chlorohexafluoro-1-methylethyl)benzenesulfinimidoyl chloride
C11H9Cl2F6NOS
Conditions | Yield |
---|---|
In tetrachloromethane at 25℃; for 48h; | 100% |
oxirane
N-(2-chlorohexafluoroisopropyl)-p-toluenesulfinimidoyl chloride
C12H11Cl2F6NOS
Conditions | Yield |
---|---|
In tetrachloromethane at 25℃; for 48h; | 100% |
oxirane
N-(2-chlorohexafluoroisopropyl)-p-nitrobenzenesulfinimidoyl chloride
C11H8Cl2F6N2O3S
Conditions | Yield |
---|---|
In tetrachloromethane at 25℃; for 48h; | 100% |
Conditions | Yield |
---|---|
In methanol at 5 - 7℃; for 336h; | 100% |
Conditions | Yield |
---|---|
In methanol at 5 - 7℃; for 336h; | 100% |
Conditions | Yield |
---|---|
In methanol at 5 - 7℃; for 336h; | 100% |
oxirane
3-(2-methoxy-5-methylphenyl)-3-phenylpropan-1-ol
Conditions | Yield |
---|---|
Stage #1: oxirane; (2-methoxy-5-methylphenyl)phenylmethane With n-butyllithium In tetrahydrofuran at -78 - 20℃; for 4h; Stage #2: With water; ammonium chloride In tetrahydrofuran | 100% |
oxirane
phenobarbital
5-ethyl-1,3-bis-(2-hydroxy-ethyl)-5-phenyl-pyrimidine-2,4,6-trione
Conditions | Yield |
---|---|
With tetraethylammonium chloride In N-methyl-acetamide | 100% |
Conditions | Yield |
---|---|
With hydrogen cation In tetrahydrofuran shaken for 10 min at room temp.; centrifuged, decanted, soln. contains naphthalene, pptn. hydrolysed in THF: butanediol detd. by GLC in the organic layer and a pptn. (Yb(OH)3); | A 83% B 100% C 75% |
Conditions | Yield |
---|---|
Stage #1: oxirane; ricinus oil; 1-amino-3-(dimethylamino)propane With sodium tetrahydroborate; sodium methylate In methanol at 130℃; for 2h; Stage #2: dimethyl sulfate at 65℃; for 4h; | 100% |
oxirane
4-(4-(trifluoromethoxy)phenoxy)piperidine
2-(4-(4-(trifluoromethoxy)phenoxy)piperidin-1-yl)ethanol
Conditions | Yield |
---|---|
at 0℃; for 0.833333h; | 100% |
In dichloromethane at 0℃; for 3h; | 100% |
oxirane
Conditions | Yield |
---|---|
Stage #1: 7-morpholino-6-nitro-3,4-dihydroquinolin-2(1H)-one With sodium hydride In N,N-dimethyl-formamide; mineral oil at 60℃; for 0.5h; Stage #2: oxirane In N,N-dimethyl-formamide; mineral oil at 60℃; for 18h; | 100% |
oxirane
Conditions | Yield |
---|---|
In tetrahydrofuran; methanol Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
Stage #1: methyloxirane; recorcinol With potassium hydroxide In toluene at 48.8789℃; for 1.5h; Under N2; Stage #2: oxirane at 48.8789℃; for 2h; | 99.7% |
oxirane
p-acetylaminobenzenesulfonyl chloride
2-(p-aminophenylsulfonyl)ethyl hydrogen sulfate
Conditions | Yield |
---|---|
Stage #1: p-acetylaminobenzenesulfonyl chloride With sodium metabisulfite; sodium hydroxide at 30℃; pH=7 - 7.5; Stage #2: oxirane at 40℃; pH=7.5 - 8; Stage #3: With sulfuric acid at 150 - 160℃; under 3750.38 Torr; | 99.7% |
Conditions | Yield |
---|---|
With hydrogen sulfide at 20℃; Temperature; | 99.5% |
With hydrogen sulfide |
Conditions | Yield |
---|---|
With sodium hydrogen sulfate at 40℃; for 0.25h; Temperature; Large scale; | 99.5% |
With water; sodium hydrogensulfite | |
With sodium metabisulfite |
Conditions | Yield |
---|---|
With Tau at 102 - 133℃; for 4h; Temperature; Autoclave; Inert atmosphere; Industrial scale; | 99.4% |
With methanol | |
With water at 100℃; im Rohr; |
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