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:65052-63-3
Min.Order:1 Kilogram
FOB Price: $3.0
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:65052-63-3
Min.Order:1 Gram
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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
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
Cas:65052-63-3
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
Type:Trading Company
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
The 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
Cas:65052-63-3
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inquiry1. Product advantages: exquisite appearance and unique functions. 2. Product Advantages: Our products are the best,fast speed ,in large stock 3. High-quality products and thoughtful service are your greatest satisfaction. 4. The product
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
Cas:65052-63-3
Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 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 o
Cas:65052-63-3
Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
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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
Cas:65052-63-3
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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
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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
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:API
Cas:65052-63-3
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inquiryQ1: Are you a manufacturer Answer: Yes, we are factory founded on 2012.Q2: How to contact with us Click "contact supplier" And then send us message the product you interest in, you will get reply within 12 hours.Q3:Which kind of payment terms do you
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
Cefotaxime series impurities ,in stock. The company has its own research and development laboratory, which can accept customization. Spot products are shipped on the same day, with stable quality and price advantages. Fast delivery speed. Appeara
Cas:65052-63-3
Min.Order:10 Milligram
FOB Price: $10.0 / 20.0
Type:Lab/Research institutions
inquiryBOC Sciences is committed to supplying cost-effective products and services. We provide Cefetamet. Cefetamet is a third-generation cephalosporin antibiotic and the active agent of Cefeamet pivoxil after hydrolysis. More information please visit: w
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
Cefetamet hydrochloride cas 65052-63-3Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
Cas:65052-63-3
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inquiryQuality assurance, stable process and affordable priceAppearance:detailed see specifications Storage:enquiry Package:according to the clients requirement Application:Pharmaceutical intermediates Transportation:Normal Port:chengdu
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inquiryhigh 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:any port in China
Cas:65052-63-3
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inquirybulk?production Application:Pharmaceutical intermediates
Cas:65052-63-3
Min.Order:0
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Type:Lab/Research institutions
inquiryhigh 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:any port in China
Cas:65052-63-3
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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:65052-63-3
Min.Order:10 Milligram
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Type:Lab/Research institutions
inquiryChangzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
3-deacetyloxy-7-aminocephalosporanic acid
ethyl 2-(2-aminothiazol-4-yl)-2-(anti)-methoxyiminoacetate
cefetamet
Conditions | Yield |
---|---|
With trimethylaluminum In hexane; dichloromethane at 35℃; for 2h; Concentration; | 98.23% |
Conditions | Yield |
---|---|
With triethanolamine In water | 92% |
t-butyl 7α-amino-3-methyl-3-cephem-4-carboxylate
2-(2-aminothiazol-4-yl)-2-(methoxy)iminoacetic acid
cefetamet
Conditions | Yield |
---|---|
(i) DCC, CH2Cl2, (ii) /BRN= 1081573/, Et3N, (iii) aq. HCO2H; Multistep reaction; |
Cefetamet pivoxil
A
(2R,6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid
B
(2R,6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester
C
cefetamet
Conditions | Yield |
---|---|
With water In N,N-dimethyl-formamide at 37℃; Rate constant; phosphate buffer, var. pH; |
ethyl 2-(2-aminothiazol-4-yl)-2-(anti)-methoxyiminoacetate
cefetamet
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Et3N / dimethylformamide / 3 h 2: aq. NaOH / dioxane / 0.5 h / Heating 3: (i) DCC, CH2Cl2, (ii) /BRN= 1081573/, Et3N, (iii) aq. HCO2H View Scheme |
(Z)-γ-bromo-β-oxo-α-methoxyiminobutyric acid ethyl ester
cefetamet
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: ethanol; H2O / 1 h / 20 °C 2: Et3N / dimethylformamide / 3 h 3: aq. NaOH / dioxane / 0.5 h / Heating 4: (i) DCC, CH2Cl2, (ii) /BRN= 1081573/, Et3N, (iii) aq. HCO2H View Scheme |
ethyl (Z)-2-(methoxyimino)-2-[2-(triphenylmethyl)-aminothiazol-4-yl]acetate
cefetamet
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. NaOH / dioxane / 0.5 h / Heating 2: (i) DCC, CH2Cl2, (ii) /BRN= 1081573/, Et3N, (iii) aq. HCO2H View Scheme |
cefetamet
Conditions | Yield |
---|---|
With triethanolamine In tetrahydrofuran; water |
B
cefetamet
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran; dichloromethane; N,N-dimethyl acetamide; water |
3-deacetyloxy-7-aminocephalosporanic acid
(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
A
2-Mercaptobenzothiazole
B
cefetamet
Conditions | Yield |
---|---|
Stage #1: 3-deacetyloxy-7-aminocephalosporanic acid; (Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate With sodium 2-ethylhexanoate In water; acetone at 5 - 10℃; Stage #2: In water; acetone at 5℃; pH=2.5 - 3.0; |
iodomethyl pivaloate
cefetamet
Conditions | Yield |
---|---|
Stage #1: cefetamet With tetrapropylammonium iodide In 1-methyl-pyrrolidin-2-one at 20℃; for 0.5h; Stage #2: iodomethyl pivaloate With pyridine In 1-methyl-pyrrolidin-2-one at -10 - 20℃; for 1h; Stage #3: With hydrogenchloride In water Concentration; | 94.86% |
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