With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
1. 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:58069-82-2
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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:58069-82-2
Min.Order:1 Kilogram
Negotiable
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inquiryUREA-13C CAS:58069-82-2 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, s
Cas:58069-82-2
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:58069-82-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryUREA-13C CAS: 58069-82-2 Specification Item Standard Identification A.H-NMR:Comply with the structure B.LC-MS:Comply with the structure C.The IR spectrum of sampl
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 highly qualifie
Cas:58069-82-2
Min.Order:1 Kilogram
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
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:58069-82-2
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:white powder 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:Labelled Urea. Phys
Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
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,
Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:58069-82-2
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryZhenyu 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
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
Cas:58069-82-2
Min.Order:1 Gram
Negotiable
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:58069-82-2
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:58069-82-2
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryProduct Name: UREA-13C Synonyms: UREA-13C;UREA-13C, RESEARCH GRADE, 99 ATOM% 13C;UREA-13C, UBT GRADE;UREA- 13C 99%;UREA (13C, 99%, 15N2, 98%);UREA-13C USP(CRM STANDARD);UREA (13C, 99%);Urea-13C - Research Grade CAS: 58069-82-2 MF: CH4N2O MW: 61
Cas:58069-82-2
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
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
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Min.Order:1 bottle
Negotiable
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
1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re
best seller Application:API
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 highly qualified in
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
best seller Application:API
Urea-13C (6CI,9CI)Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
13C urea
Conditions | Yield |
---|---|
With ammonium sulfate; ammonium hydroxide at 70℃; for 4h; | 87% |
trichloro[13C]methyl phenyl sulfide
A
13C urea
B
(13C)-guanidine hydrochloride
Conditions | Yield |
---|---|
Stage #1: trichloro[13C]methyl phenyl sulfide With ammonia In ethanol; dichloromethane; water at -80 - 20℃; for 72.5h; Stage #2: With hydrogenchloride; water | A 49% B 47% |
A
diazomethane
B
13C urea
C
carbonic acid monomethyl ester
D
[13C]cyanic acid
Conditions | Yield |
---|---|
With sodium hydroxide; phosphate buffer In methanol; water at 22℃; Product distribution; other reagents, temperature; |
Conditions | Yield |
---|---|
recrystn. from ethanol; |
Conditions | Yield |
---|---|
With iron(II) bromide In 1,4-dioxane at 150℃; for 18h; Inert atmosphere; Sealed tube; | 90% |
13C urea
13C3-cyanuric acid
Conditions | Yield |
---|---|
In sulfolane at 205℃; under 100 Torr; for 2h; | 88.4% |
In sulfolane; cyclohexanol at 50 - 200℃; | 87% |
With sulfolane; cyclohexanol at 60 - 210℃; for 3h; |
13C urea
Conditions | Yield |
---|---|
at 190℃; for 2h; | 80% |
Conditions | Yield |
---|---|
With hydrogenchloride In water at 85 - 90℃; | 78% |
Conditions | Yield |
---|---|
With nickel(II) acetylacetonate; potassium fluoride; phenylsilane; zinc; bis(2-diphenylphosphinoethyl)phenylphosphine In 1-methyl-pyrrolidin-2-one at 90 - 140℃; for 20h; | 75% |
Conditions | Yield |
---|---|
With sodium ethanolate In ethanol for 5h; Heating; | 74% |
Conditions | Yield |
---|---|
With PPA at 85℃; for 6h; | 66% |
Stage #1: 13C urea; Propiolic acid at 95 - 110℃; Stage #2: With water; sodium hydroxide | 64% |
Conditions | Yield |
---|---|
With potassium hydroxide at 100℃; for 3h; | 65% |
Conditions | Yield |
---|---|
at 170℃; | 60% |
13C urea
methyl p-toluene sulfonate
O-methyl-[13C]isourea p-methylsulfonate salt
Conditions | Yield |
---|---|
Methylation; Heating; | 60% |
1.) 100 deg C, 5 h; 2.) acetone, RT, 1 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
In tetrahydrofuran for 15h; Heating; | 48% |
13C urea
Conditions | Yield |
---|---|
With sodium ethanolate 1.) EtOH, RT, 10 min, 2.) EtOH, reflux, 12 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With sodium ethanolate 1.) ETOH, 0 deg C, 2.) EtOH, reflux, 30 h; Yield given. Multistep reaction; |
13C urea
Conditions | Yield |
---|---|
at 100℃; for 1h; |
13C urea
DL-5-chlorohydantoin
Conditions | Yield |
---|---|
In nitromethane for 1h; Reflux; |
Conditions | Yield |
---|---|
at 185℃; for 1h; | 296 mg |
13C urea
carbon dioxide
Conditions | Yield |
---|---|
With carbon dioxide; urease In water for 1h; Catalytic behavior; Solvent; Concentration; Sealed tube; Enzymatic reaction; |
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