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:4538-37-8
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:4538-37-8
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:4538-37-8
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the
Cas:4538-37-8
Min.Order:1 Kilogram
Negotiable
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:4538-37-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1,4-DIISOCYANATOBUTANE CAS:4538-37-8 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 organic int
Cas:4538-37-8
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:4538-37-8
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:4538-37-8
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:4538-37-8
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:4538-37-8
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiry1,4-DIISOCYANATOBUTANE Chemical Properties Melting point 0°C Boiling point 102-104 °C14 mm Hg(lit.) density 1.105 g/mL at 25 °C(lit.) refractive index n20/D 1.453 Fp 224 °F storage temp. 2-8°C form Liqu
Cas:4538-37-8
Min.Order:1 Gram
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
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
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:4538-37-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryButane,1,4-diisocyanato- Application:Organic Chemicals
Appearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
Cas:4538-37-8
Min.Order:0
Negotiable
Type:Trading Company
inquiryButane,1,4-diisocyanato- cas 4538-37-8Appearance: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
Good 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
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:4538-37-8
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryBetterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in
Cas:4538-37-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryFounded in 2017, Chongqing Yuhan Technology Co., Ltd. is an innovative manufacturer of chemical products and technical service providers. Our business includes sales of chemicals, flavors and fragrances, API, pharmaceutical intermediates, water tre
Cas:4538-37-8
Min.Order:40 Kilogram
Negotiable
Type:Trading Company
inquiryHuBei ipure is a diversified product production and operation enterprise, with API, pharma intermediates, and other fine chemicals as well as R&D and pigments development and sales as one of the large enterprises, with more than 130 acres of pl
1,4-butamethylene-bis(phenyl carbamate)
A
1,4-diisocyanatobutane
B
phenol
Conditions | Yield |
---|---|
In diphenylether at 240℃; for 2h; Inert atmosphere; | A 58% B n/a |
Conditions | Yield |
---|---|
Stage #1: Adipic acid dichloride With sodium azide In water; acetone Stage #2: In cyclohexane Curtius Rearrangement; Heating; Further stages.; | 57% |
N,N'-diacetoxy-adipamide
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
at 200℃; for 0.5h; Lossen Rearrangement; | 2% |
adipic diazide
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With benzene |
methylammonium carbonate
1,4-diaminobutane
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With 1,2-dichloro-benzene Behandeln mit Phosgen; | |
With 1,2-dichloro-benzene Behandeln mit Phosgen; |
NN'-diformyl-1,4-diaminobutane
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With bromine In benzene |
Conditions | Yield |
---|---|
With 1,2-dichloro-benzene at 160 - 180℃; |
Conditions | Yield |
---|---|
With N,N-dimethyl-formamide |
Conditions | Yield |
---|---|
Stage #1: adipic acid dihydrazide With hydrogenchloride; sodium nitrite In water at 0 - 8℃; Curtius Rearrangement; Stage #2: In benzene at 64℃; |
bis(trichloromethyl) carbonate
1,4-diaminobutane
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0 - 30℃; for 1.5h; Inert atmosphere; |
1,4-diisocyanatobutane
adamantan-2-amine hydrochloride
1,4-(tetramthylene)bis[(adamant-2-yl)urea]
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; | 99% |
1,4-diisocyanatobutane
1-Adamantanamine
1,1'-(butane-1,4-diyl)bis[3-(adamantan-1-yl)urea]
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 15 - 25℃; for 6h; | 99% |
1,4-diisocyanatobutane
1,3,4,6-tetra-O-acetyl-D-glucosamine hydrochloride
Conditions | Yield |
---|---|
With water; calcium carbonate In dichloromethane Ambient temperature; | 98% |
1,4-diisocyanatobutane
amantadine hydrochloride
1,1'-(butane-1,4-diyl)bis[3-(adamantan-1-yl)urea]
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; | 98% |
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; |
1,4-diisocyanatobutane
ethyl 2-oxopyrrolidine-5-carboxylate
Conditions | Yield |
---|---|
With sodium hydride In diethyl ether at 20℃; for 1h; | 97% |
1,4-diisocyanatobutane
1,1'-(butane-1,4-diyl)bis{3-[1-(adamantan-1-yl)ethyl]urea}
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 15 - 25℃; for 6h; | 97% |
1,4-diisocyanatobutane
1-(adamantan-1-yl)-2-aminobutane
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 15 - 25℃; for 6h; | 97% |
1,4-diisocyanatobutane
3-(adamantan-1-yloxy)propan-1-amine
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 12h; | 97% |
1,4-diisocyanatobutane
rimantadine hydrochloride
1,1'-(butane-1,4-diyl)bis{3-[1-(adamantan-1-yl)ethyl]urea}
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; | 96% |
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; |
1,4-diisocyanatobutane
with 1-(adamant-1-yl)butan-2-amine hydrochloride
1,4-(tetramethylene)bis{[(adamant-1-yl)sec-butyl-1]urea}
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 25℃; for 12h; Inert atmosphere; | 96% |
1,4-diisocyanatobutane
3-aminophenylboronic acid pinacolate
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 60℃; for 2h; | 95% |
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 12h; | 95% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 8h; | 95% |
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 12h; | 94% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 8h; | 94% |
1,4-diisocyanatobutane
7-diethylamino-2-imino-2H-1-benzopyran-3-carbonitrile
1,1'-(butane-1,4-diyl)bis{3-[3-cyano-7-(diethylamino)-2H-chromen-2-ylidene]urea}
Conditions | Yield |
---|---|
In chloroform at 0 - 20℃; | 88% |
1,4-diisocyanatobutane
4,6-diisopropyl-1,3-bis[methylene-(N'-2-aminophenylureylene)]-m-xylene
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide Cycloaddition; | 85% |
Conditions | Yield |
---|---|
With dibutyltin dilaurate In diethyl ether at 0 - 20℃; for 4h; Inert atmosphere; Schlenk technique; | 85% |
N-(tert-butyloxycarbonyl)-S-methylisothiourea
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 2.5h; | 83% |
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 25℃; for 12h; | 82% |
1,4-diisocyanatobutane
N-BOC-1,2-diaminoethane
Conditions | Yield |
---|---|
In chloroform at 20℃; for 1h; | 82% |
1,4-diisocyanatobutane
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane for 12h; | 81% |
1,4-diisocyanatobutane
L-alanine methyl ester hydrochloride
methyl (2S)-2-[[4-[[[(1S)-2-methoxy-1-methyl-2-oxo-ethyl]carbamoyl]amino]butylcarbamoyl]amino]propanoate
Conditions | Yield |
---|---|
With triethylamine In chloroform at 70℃; for 1h; | 81% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In chloroform at 20℃; for 3h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 8h; | 80% |
Conditions | Yield |
---|---|
In 1,4-dioxane Ambient temperature; | 76% |
1,4-diisocyanatobutane
glycine ethyl ester hydrochloride
methyl 2-[[4-[[(2-methoxy-2-oxo-ethyl)carbamoyl]amino]butylcarbamoyl]amino]acetate
Conditions | Yield |
---|---|
With triethylamine In chloroform at 70℃; for 18h; | 76% |
1,4-diisocyanatobutane
2-(2-(2-(2-azidoethoxy)ethoxy)ethoxy)ethylamine
Conditions | Yield |
---|---|
With triethylamine In chloroform at 20℃; for 0.166667h; Cooling with ice; | 76% |
Conditions | Yield |
---|---|
Stage #1: 1,4-diisocyanatobutane; phenol With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 1h; Stage #2: hexan-1-amine In dichloromethane for 0.5h; | 75% |
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