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:452-06-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:452-06-2
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
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 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
Now we would like to update our product list for you, kindly check the below information: 1. Catalyst series ( such as Noble Metal Catalyst, Phosphorous ligand, etc ) 2. Pharmaceutical Intermediate ( such as diabtes series, Anti
Our advantages: 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be sent out in 24 hours after payment.Tracking number available 2) Secure and disc
Cas:452-06-2
Min.Order:1 Kilogram
FOB Price: $150.0 / 200.0
Type:Trading Company
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:452-06-2
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryAbout Product Details
Cas:452-06-2
Min.Order:1 Kilogram
FOB Price: $1.0 / 5.0
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:452-06-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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 presen
2-Aminopurine CAS:452-06-2 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 organic intermediates
Cas:452-06-2
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:452-06-2
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
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
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
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
Cas:452-06-2
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryProduct 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,
We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
Shandong Mopai Biotechnology 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 chemicals. W
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SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:452-06-2
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
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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
bulk 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
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
Amoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi
2-(methylthio)-9H-purine
9H-purin-2-amine
Conditions | Yield |
---|---|
With potassium amide In ammonia for 70h; Mechanism; 2-halogenated purines; | 90% |
2-Amino-6-chloropurin
9H-purin-2-amine
Conditions | Yield |
---|---|
In hydrogenchloride at 50℃; electrolysis, -0.75V, initial current 50-60 mA; | 85% |
palladium on charcoal In sodium hydroxide; water |
9H-purin-2-amine
Conditions | Yield |
---|---|
With methylamine In methanol at 100℃; for 17h; | 80% |
Conditions | Yield |
---|---|
With ammonia In methanol at 100℃; for 17h; Mechanism; Product distribution; | A 70% B 20% |
Conditions | Yield |
---|---|
1.) RT, 6 h, 2.) reflux, 30 min; | 61% |
A
2-(methylthio)-9H-purine
B
9H-purin-2-amine
Conditions | Yield |
---|---|
With ammonia In methanol at 100℃; for 17h; Product distribution; Mechanism; ANRORC and no ANRORC mechanism determined by reaction with 15N labelled ammonia; var. temp. and time; | A 55% B 25% |
amipurimycin
9H-purin-2-amine
Conditions | Yield |
---|---|
With trifluoroacetic acid at 130℃; | 48% |
9H-purin-2-amine
Conditions | Yield |
---|---|
With nickel In water for 7.5h; Heating; | 35.7% |
iso-2',3'-dideoxyadenosine
A
2,3-Didesoxy-β-D-glycero-pentofuranose
B
9H-purin-2-amine
Conditions | Yield |
---|---|
With hydrogenchloride at 22℃; rate of hydrolysis relative to dideoxyadenosine; |
2-amino-9-(β-D-2'-deoxyribofuranosyl)-purine
A
2,4-diamino-5-formamidopyrimidine
B
9H-purin-2-amine
Conditions | Yield |
---|---|
With sodium cacodylate buffer; water at 110℃; for 22h; Kinetics; Thermodynamic data; Mechanism; ΔH(excit.); var. temp. and times; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 60 percent / NaOH / dioxane; H2O / 5 - 10 °C 2: 35.7 percent / Raney nickel / H2O / 7.5 h / Heating View Scheme |
formamide
9H-purin-2-amine
Conditions | Yield |
---|---|
With Canyon Diablo iron meteorites at 140℃; for 24h; Reagent/catalyst; Temperature; |
9H-purin-2-amine
Conditions | Yield |
---|---|
With thallium (I) ethoxide In ethanol at 15 - 20℃; for 36h; | 92% |
9H-purin-2-amine
2'-deoxy-2'-fluorouridine
Conditions | Yield |
---|---|
In water at 37℃; for 48h; thymidine phosphorylase, purine nucleoside phosphorylase, phosphate buffer, pH 7; | 89% |
9H-purin-2-amine
2'-Deoxycytidine
2-amino-9-(β-D-2'-deoxyribofuranosyl)-purine
Conditions | Yield |
---|---|
With citrate buffer; N-deoxyribosyltransferase from L. leichmannii In ethanol at 40℃; for 48h; | 86% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 50 - 80℃; | 85% |
9H-purin-2-amine
1,2:5,6-dianhydro-3,4-di-O-benzyl-L-iditol
Conditions | Yield |
---|---|
Stage #1: 9H-purin-2-amine With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; Stage #2: 1,2:5,6-dianhydro-3,4-di-O-benzyl-L-iditol In N,N-dimethyl-formamide at 110℃; | 66% |
Conditions | Yield |
---|---|
at 130℃; for 17h; | 63% |
mesitylenesulfonylhydroxylamine
9H-purin-2-amine
Conditions | Yield |
---|---|
In methanol; dichloromethane for 4h; Ambient temperature; | 62% |
Conditions | Yield |
---|---|
With phosphate buffer; cell paste of Enterobacter aerogenes AJ 11125 at 60℃; for 15h; pH 7.0; | 61% |
4-acetoxy-3-(acetoxymethyl)-1-iodobutane
9H-purin-2-amine
A
7-(4-acetoxy-3-acetoxymethylbutyl)-2-aminopurine
B
9-(4-acetoxy-3-acetoxymethylbutyl)-2-aminopurine
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide for 18h; Ambient temperature; | A 15% B 59% |
tert-butyl prop-2-ynoate
9H-purin-2-amine
A
C12H15N5O2
B
C12H15N5O2
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 50 - 80℃; | A 57% B 23% |
9H-purin-2-amine
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 20 - 65℃; for 8h; | A 20% B 53% |
ethyl bromoacetate
9H-purin-2-amine
2-(2-amino-9H-purin-9-yl)acetic acid
Conditions | Yield |
---|---|
Stage #1: 9H-purin-2-amine With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 1h; Inert atmosphere; Stage #2: ethyl bromoacetate In N,N-dimethyl-formamide for 2h; Inert atmosphere; Stage #3: With sodium hydroxide In water; N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere; | 51% |
(5aS,7S)-7-[(1R/S)-2-bromo-1-methylethyl]-3-methyl-1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyran
9H-purin-2-amine
(5aS,7S)-7-[(1R/S)-2-(2-amino-9H-purin-9-yl)-1-methylethyl]-3-methyl-1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyran
Conditions | Yield |
---|---|
Stage #1: 9H-purin-2-amine With caesium carbonate In N,N-dimethyl-formamide at 25℃; for 1h; Inert atmosphere; Stage #2: (5aS,7S)-7-[(1R/S)-2-bromo-1-methylethyl]-3-methyl-1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyran In N,N-dimethyl-formamide at 25℃; for 24h; Inert atmosphere; | 48% |
5-chloromethyl-2,2-dimethyl-1,3-dioxolane
9H-purin-2-amine
A
9-(RS)-(2,2-dimethyl-1,3-dioxolan-4-yl)methyl-2-aminopurine
B
7-(RS)-(2,2-dimethyl-1,3-dioxolan-4-yl)methyl-2-aminopurine
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 100℃; for 14h; | A 44% B 15% |
Conditions | Yield |
---|---|
at 50℃; for 2h; Escherichia coli JA-300 cells, pH 6.5; | 44% |
Diethyl 2-Bromoethoxymethanephosphonate
9H-purin-2-amine
[2-(2-Amino-purin-9-yl)-ethoxymethyl]-phosphonic acid diethyl ester
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide a) At 80 deg C for 1 h 2) addition of IIc,80 deg C for 16 h; | 40% |
diethyl-2-(2-bromoethylidene)malonte
9H-purin-2-amine
2-amino-9-(2,2-dicarboethoxycyclopropyl)purine
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide | 39% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 4h; | 36% |
9H-purin-2-amine
2-deoxy-2-fluoro-α-D-arabinofuranose 1-phosphate
Conditions | Yield |
---|---|
purine nucleoside phosphorylase In water at 50℃; for 216h; pH=7.5; Aqueous phosphate buffer; Enzymatic reaction; | 32% |
Conditions | Yield |
---|---|
With ethanol 1) EtOH, 25 min, reflux, 2) 15 min, reflux; Yield given. Multistep reaction; |
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