As 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:123-61-5
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:123-61-5
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryOur company was built in 2009 with an ISO certificate.In the past 6 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:123-61-5
Min.Order:1 Kilogram
FOB Price: $1000.0
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:123-61-5
Min.Order:10 Gram
FOB Price: $146.0 / 176.0
Type:Trading Company
inquiryAppearance:White powder Storage:R.T Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Any port in China
Cas:123-61-5
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Lab/Research institutions
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:123-61-5
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:123-61-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:123-61-5
Min.Order:1 Kilogram
FOB Price: $40.0 / 50.0
Type:Lab/Research institutions
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
Cas:123-61-5
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
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:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou 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
Cas:123-61-5
Min.Order:0 Metric Ton
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:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryThe 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 providing h
Zhenyu 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:123-61-5
Min.Order:1 Kilogram
FOB Price: $2.0
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:123-61-5
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
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:123-61-5
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
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
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:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySupply top quality products with a reasonable price Application:api
Benzene,1,3-diisocyanato- cas 123-61-5Appearance: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:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry123-61-5 Application:intermediate
Cas:123-61-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.Appearance:White powder Storage:keep sealed and keep from direct light Package:According client's requirements Application:pharmaceutica
Cas:123-61-5
Min.Order:0
Negotiable
Type:Trading Company
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP
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:123-61-5
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryShanghai AngewChemCo., Ltd. is an innovative enterprise on fine chemicals and pharmaceuticals. Based on Shanghai R&D center and Hunan chemical manufacturing plant, we offer chemical research, process development, and large-scale production. Com
Cas:123-61-5
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquirymeta-dinitrobenzene
carbon monoxide
A
isocyanic acid (3-nitro-phenyl) ester
B
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
With MoO3+Fe2O3 on Al2O3; trimethyleneglycol In 1,2-dichloro-benzene at 210℃; under 228000 Torr; | A 8% B 75% |
Conditions | Yield |
---|---|
With benzene | |
In toluene at 80℃; for 2h; Inert atmosphere; | |
In toluene for 2h; Reflux; |
Conditions | Yield |
---|---|
With phosphorus pentoxide bei der Destillation; |
Conditions | Yield |
---|---|
With 2-chloro-1,3,2-benzodioxaborole; triethylamine In toluene 1.) reflux, 5 min, 2.) 0.5 h; | 98 % Chromat. |
methanol
1,3-Phenylene diisocyanate
dimethyl N,N'-(1,3-phenylene)dicarbamate
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
1,3-Phenylene diisocyanate
butan-1-ol
(3-Butoxycarbonylamino-phenyl)-carbamic acid butyl ester
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
Conditions | Yield |
---|---|
for 36h; Heating; | 98% |
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 12h; | 97% |
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 12h; | 95% |
2-octyloxybenzoic acid hydrazide
1,3-Phenylene diisocyanate
C38H52N6O6
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 8h; | 92% |
6-aminocoumarin
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 24h; | 70% |
Conditions | Yield |
---|---|
In dichloromethane for 10h; | 70% |
2-amino-2-methylpropionic acid methyl ester
1,3-Phenylene diisocyanate
C18H26N4O6
Conditions | Yield |
---|---|
In dichloromethane for 10h; | 70% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; | 68% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 12h; | 65.5% |
4-tritylphenol
11'-(tert-butyl)-5',17',23',35',38',40'43',45'-octamethyldispiro[cyclohexane-1,2'-[7,15,25,33]tetraazaheptacyclo[32.2.2.2.2(3,6).2(16,19).2(21,24).1(3,13).1(27,31)]hexatetraconta[3,5,9,11,13(44),16,18,21,23,27,29,31(39),34,36,37,40,42,45]octadecaene..].
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane Heating; | A 24% B 64% |
Conditions | Yield |
---|---|
In neat (no solvent) under N2; mixt. of V compd. and diisocyanate stirred at 140°C for3 h; cooled to room temp.; CH2Cl2 added; filtered; filtrate evapd. under reduced pressure; recrystd. from hexane or CH2Cl2 at -30°C; | 60% |
Conditions | Yield |
---|---|
In chloroform at 20℃; for 1h; | 58% |
2-phenylamino-3-(triphenylphosphoranylidene-amino)pyrazino[2',3':4,5]-thieno[3,2-d]pyrimidin-4(3H)-one
1,3-Phenylene diisocyanate
N,N'-bis(10-oxo-3-phenylpyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-2-yl)benzene-1,3-diamine
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 150℃; for 3h; aza-Wittig reaction; | 50% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 2h; | 50% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 12h; Cooling with ice; | 47.7% |
Conditions | Yield |
---|---|
In chloroform at 50℃; for 24h; | 46% |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In tetrahydrofuran at 20℃; for 0.25h; | 33% |
2-(4-methoxyphenoxy)-1-triisopropylsilylacetylene
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
With zinc diacetate; palladium diacetate; tricyclohexylphosphine In toluene at 120℃; for 18h; Inert atmosphere; | 31% |
N,N'-dicyclohexyl-4-morpholine carboxamidine
1,3-Phenylene diisocyanate
1-Cyclohexyl-3-[3-(3-cyclohexyl-3-{[(E)-cyclohexylimino]-morpholin-4-yl-methyl}-ureido)-phenyl]-1-{[(E)-cyclohexylimino]-morpholin-4-yl-methyl}-urea
Conditions | Yield |
---|---|
In dichloromethane Ambient temperature; | 21% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View