DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:104-98-3
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:104-98-3
Min.Order:1 Gram
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Type:Manufacturers
inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:104-98-3
Min.Order:1 Kilogram
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Type:Manufacturers
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
High quality and best price of 2-Propenoic acid,3-(1H-imidazol-5-yl)- from Henan Tianfu Chemical: Henan Tianfu Chemical Co.,LTD was built in 2009 with an ISO certificate in the past 5 years, we have grown up as a famous fine chemicals supplier in
Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
WITH 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:104-98-3
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Type:Trading Company
inquiryAppearance:White to beige powder Storage:Keep in dark place,Sealed in dry,2-8°C Package:25kg/drum Application:chemicals Transportation:Express/Sea/Air Port:any port in china
Cas:104-98-3
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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:104-98-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:white powder/ Refer to COA Storage:Refer to COA
Cas:104-98-3
Min.Order:1 Gram
Negotiable
Type:Trading Company
inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
Cas:104-98-3
Min.Order:1 Kilogram
FOB Price: $58.0 / 65.0
Type:Trading Company
inquiryUrocanic acid CAS:104-98-3 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 intermediates
Cas:104-98-3
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:104-98-3
Min.Order:1 Kilogram
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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:104-98-3
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:104-98-3
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
Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
J&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:104-98-3
Min.Order:0
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inquiryMassive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
Cas:104-98-3
Min.Order:1 Gram
FOB Price: $1.0
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:104-98-3
Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryHangzhou 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
3-imidazol-4-ylacrylic acidAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air
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
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Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:104-98-3
Min.Order:1 bottle
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Type:Lab/Research institutions
inquiryhigh 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
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:Beijing or Guangzhou
Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
Conditions | Yield |
---|---|
With histidase EC 4.3.1.3; Tris buffer In water at 37℃; for 24h; pH=9.0; | |
With histidase Enzymatic reaction; |
urocanic acid
4-(3-hydroxypropyl)-1H-imidazole
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride | 100% |
methanol
urocanic acid
methyl 3-(imidazol-4(5)-yl)-2-propenoate
Conditions | Yield |
---|---|
With thionyl chloride | 98% |
With hydrogenchloride Reflux; | 94% |
With sulfuric acid; magnesium sulfate Fischer esterification; Reflux; | 93% |
methanol
urocanic acid
3-(1H-imidazol-4-yl)propionic acid methyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: urocanic acid With hydrogenchloride; palladium 10% on activated carbon; hydrogen In methanol; water at 45℃; under 760.051 Torr; for 96h; Large scale; Stage #2: methanol With hydrogenchloride at 45℃; Large scale; | 98% |
Conditions | Yield |
---|---|
at 250℃; | 93% |
at 110℃; | 71% |
at 240℃; under 0.0165017 Torr; for 6h; | 66% |
methanol
urocanic acid
methyl 3-[1H-imidazol-4-yl]propenoate hydrochloride salt
Conditions | Yield |
---|---|
With hydrogenchloride at 0℃; for 2h; | 87% |
N-BOC-1,2-diaminoethane
urocanic acid
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 0 - 20℃; | 86% |
Conditions | Yield |
---|---|
Stage #1: urocanic acid With palladium on activated charcoal; hydrogen In methanol at 25℃; Stage #2: ethanol With sulfuric acid In methanol Reflux; Inert atmosphere; | 82% |
Stage #1: urocanic acid With palladium on activated charcoal; hydrogen In methanol at 25℃; Stage #2: ethanol With sulfuric acid Reflux; Inert atmosphere; | 82% |
Conditions | Yield |
---|---|
Stage #1: methanol; urocanic acid With thionyl chloride for 16h; Reflux; Stage #2: With sodium carbonate In water; ethyl acetate | 81% |
2,4-Dinitrofluorobenzene
urocanic acid
3-[1-(2,4-dinitrophenyl)-1H-imidazol-4-yl]propenoic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol; water at 20℃; for 16h; Substitution; | 76% |
Conditions | Yield |
---|---|
In ethanol; toluene for 24h; Reflux; Dean-Stark; | 75% |
Conditions | Yield |
---|---|
Stage #1: urocanic acid With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 20℃; for 0.0833333h; Stage #2: 2,2,2-trifluoroethanol In dichloromethane at 20℃; for 18h; | 64% |
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid at 80℃; for 18h; Sealed tube; Inert atmosphere; | 64% |
Conditions | Yield |
---|---|
In ethanol; toluene for 24h; Reflux; Dean-Stark; | 60% |
Conditions | Yield |
---|---|
In ethanol; water High Pressure; equimol., heated at 433 K for 72 h; slowly cooled to room temp. (72 h), crysts. collected; elem. anal.; | 48% |
5'-O-dimethoxytrityl-2'-amino-2'-deoxyuridine
urocanic acid
Conditions | Yield |
---|---|
Stage #1: urocanic acid With 1-hydroxy-pyrrolidine-2,5-dione; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 0 - 20℃; Stage #2: 5'-O-dimethoxytrityl-2'-amino-2'-deoxyuridine In N,N-dimethyl-formamide at 20℃; Further stages.; | 45% |
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In N,N-dimethyl-formamide at -5 - 20℃; for 12h; | 45% |
Conditions | Yield |
---|---|
With iodine In neat (no solvent) at 20 - 23℃; for 8h; | 25% |
Conditions | Yield |
---|---|
In methanol; water High Pressure; stoich., ligand in CH3OH mixed dropwise with soln. of Cu salt in h2O, heated in an autoclave at 90°C for 3 d; isolated, elem. anal.; | 11% |
N1-(2-aminoethyl)-N2-(7-chloroquinolin-4-yl)-N1-methylethane-1,2-diamine
urocanic acid
Conditions | Yield |
---|---|
Stage #1: urocanic acid With 1,1'-carbonyldiimidazole In N,N-dimethyl-formamide for 2h; Inert atmosphere; Stage #2: N1-(2-aminoethyl)-N2-(7-chloroquinolin-4-yl)-N1-methylethane-1,2-diamine In N,N-dimethyl-formamide for 21h; Inert atmosphere; | 8% |
Conditions | Yield |
---|---|
With pyridine In water for 0.0833333h; |
di-tert-butyl dicarbonate
urocanic acid
3-(1-tert-butoxycarbonyl-imidazol-4-yl)-acrylic acid
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 20℃; |
urocanic acid
C26H22N2O2
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide View Scheme | |
Multi-step reaction with 2 steps 1: sulfuric acid; magnesium sulfate / Reflux 2: triethylamine / N,N-dimethyl-formamide View Scheme |
urocanic acid
4-chloroallyl-1-tritylimidazole
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h View Scheme |
urocanic acid
C44H38N4O3
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h 5: 21 percent / NaH / tetrahydrofuran / 2 h / 60 °C View Scheme |
urocanic acid
C36H36N4O
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h 5: 21 percent / NaH / tetrahydrofuran / 2 h / 60 °C 6: 99 percent / H2 / Pd/C / methanol; ethyl acetate / atmospheric pressure View Scheme |
urocanic acid
C44H49N5O4
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h 5: 21 percent / NaH / tetrahydrofuran / 2 h / 60 °C 6: 99 percent / H2 / Pd/C / methanol; ethyl acetate / atmospheric pressure 7: 85 percent / CH2Cl2 / 5 h / 0 - 20 °C View Scheme |
urocanic acid
C25H35N5O4
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h 5: 21 percent / NaH / tetrahydrofuran / 2 h / 60 °C 6: 99 percent / H2 / Pd/C / methanol; ethyl acetate / atmospheric pressure 7: 85 percent / CH2Cl2 / 5 h / 0 - 20 °C 8: 90 percent / TFA; triethylsilane / CH2Cl2 / 1 h / 20 °C View Scheme |
urocanic acid
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: 98 percent / SOCl2 2: Et3N / dimethylformamide 3: 75 percent / LiAlH4 / tetrahydrofuran 4: 75 percent / SOCl2 / tetrahydrofuran / 1 h 5: 21 percent / NaH / tetrahydrofuran / 2 h / 60 °C 6: 99 percent / H2 / Pd/C / methanol; ethyl acetate / atmospheric pressure 7: 85 percent / CH2Cl2 / 5 h / 0 - 20 °C 8: 90 percent / TFA; triethylsilane / CH2Cl2 / 1 h / 20 °C 9: 85 percent / aq. NaOH / methanol / 1 h / 20 °C View Scheme |
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