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:58909-56-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Cas:58909-56-1
Min.Order:1
Negotiable
Type:Other
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:58909-56-1
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryTIANFUCHEM--58909-56-1--(6R-trans)-7-amino-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid factory price Our company was built in 2009 with an ISO certifica
Cas:58909-56-1
Min.Order:1 Metric Ton
FOB Price: $2000.0
Type:Lab/Research institutions
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam
Cas:58909-56-1
Min.Order:1 Kilogram
FOB Price: $8.0 / 10.0
Type:Trading Company
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:58909-56-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry(6R-trans)-7-amino-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid CAS:58909-56-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological co
Cas:58909-56-1
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:58909-56-1
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:58909-56-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryEstablished 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:58909-56-1
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiryWe are leading fine chemicals supplier in China with ISO certificate, Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED
Cas:58909-56-1
Min.Order:1 Gram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryfactory?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:58909-56-1
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong 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:58909-56-1
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:58909-56-1
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquirySAGECHEM 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 service
Cas:58909-56-1
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis:
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:58909-56-1
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryhigh purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
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 .5) We can do different t
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Manufacturers
inquirybest seller Application:API
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryBOC Sciences is committed to supplying cost-effective products and services. We provide Ceftriaxone Impurity E. An intermediate in the synthesis of cephalosporin antibiotics, Ceftriaxone and Cefixime More information please visit: www.bocsci.com/c
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:58909-56-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry7-Amino-3-[[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thio]methyl]cephalosporanic acid Application:7-Amino-3-[[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thio]methyl]cephalosporanic acid
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Other
inquiryAppearance: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:58909-56-1
Min.Order:0
Negotiable
Type:Trading Company
inquirygood quality, competitive price, thoughtful after sale serviceAppearance:White to Off-White Solid Storage:Keep it in dry,shady and cool place Package:as your requirement Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by Sea
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirybest seller Application:API
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Trading Company
inquiry5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid,7-amino-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-,(6R,7R)- cas 58909-56-1Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place
Cas:58909-56-1
Min.Order:0
Negotiable
Type:Other
inquiry2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
7-Aminocephalosporanic acid
7-aminoceftrizine
Conditions | Yield |
---|---|
With boron trifluoride dimethyl carbonate complex; methanesulfonic acid at 10 - 12℃; for 0.383333h; Reagent/catalyst; | 95.1% |
With boron trifluoride dimethyl carbonate complex; edetate disodium at 30℃; for 0.833333h; Time; | 90% |
With boron trifluoride In acetonitrile at 10 - 30℃; for 0.5h; | 85.71% |
7-Aminocephalosporanic acid
7-aminoceftrizine
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; acetonitrile boron trifluoride complex at 30℃; for 0.333333h; | 88% |
7-aminoceftrizine
Conditions | Yield |
---|---|
With sodium hydroxide; glutaryl-7-aminocephalosporanic acid acylase In water at 25℃; pH=8.0; Enzyme kinetics; Enzymatic reaction; |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 95.7% |
(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
7-aminoceftrizine
ceftriaxone disodium
Conditions | Yield |
---|---|
Stage #1: (Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate; 7-aminoceftrizine With triethylamine In methanol at -2 - 3℃; Stage #2: With sodium 2-ethylhexanoic acid In water; isopropyl alcohol at 26 - 30℃; for 2h; Product distribution / selectivity; | 95.5% |
With sodium metabisulfite; edetate disodium; triethylamine In ethanol; water at 1 - 3℃; for 3h; Time; | 91% |
7-aminoceftrizine
ceftriaxone disodium
Conditions | Yield |
---|---|
Stage #1: 7-aminoceftrizine With N,O-bis-(trimethylsilyl)-acetamide In dichloromethane at 20℃; for 2h; Stage #2: diethylthiophosphoryl-(Z)-(2-aminothiazol-4-yl)methoxyimino acetate In dichloromethane at 20℃; for 4h; Stage #3: With sodium hydroxide In dichloromethane; water at 15 - 20℃; pH=7.5 - 7.8; | 94.6% |
Stage #1: 7-aminoceftrizine With chloro-trimethyl-silane; 1,1,1,3,3,3-hexamethyl-disilazane In dichloromethane at 20℃; for 2h; Stage #2: diethylthiophosphoryl-(Z)-(2-aminothiazol-4-yl)methoxyimino acetate In dichloromethane at 20℃; for 18h; | |
Stage #1: 7-aminoceftrizine With N,O-bis-(trimethylsilyl)-acetamide In DMF (N,N-dimethyl-formamide) at 20℃; for 2h; Stage #2: diethylthiophosphoryl-(Z)-(2-aminothiazol-4-yl)methoxyimino acetate In DMF (N,N-dimethyl-formamide) at 20℃; for 4h; Stage #3: With sodium hydroxide In DMF (N,N-dimethyl-formamide); water at 15 - 20℃; pH=7.5 - 7.8; | |
Stage #1: 7-aminoceftrizine With N,N'-bis(trimethylsilyl)urea In dichloromethane at 20℃; for 2h; Stage #2: diethylthiophosphoryl-(Z)-(2-aminothiazol-4-yl)methoxyimino acetate In dichloromethane at 20℃; for 10h; Stage #3: With sodium hydroxide In dichloromethane; water at 15 - 20℃; pH=7.5 - 7.8; |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 93.4% |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 93.3% |
7-aminoceftrizine
ceftriaxone
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 92.8% |
4-(diethylphosphoryl)-2-(2-amino-4-thiazolyl)-2-syn-(2-methoxyimino)acetate
7-aminoceftrizine
ceftriaxone
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 91.7% |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 91.6% |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; | 91.2% |
2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetic acid
7-aminoceftrizine
ceftriaxone disodium
Conditions | Yield |
---|---|
Stage #1: 2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetic acid With isopropyl chloroformate; triethylamine In dichloromethane; acetonitrile at -5 - 20℃; for 5h; Stage #2: 7-aminoceftrizine In dichloromethane; acetonitrile at 20℃; for 6h; | 89.18% |
7-aminoceftrizine
Conditions | Yield |
---|---|
Stage #1: 2-mercapto-benzothiazolyl-(Z)-2-(2-aminothiazol-4-yl)-2-methoxyimino acetate; 7-aminoceftrizine With triethylamine In tetrahydrofuran; water at 0 - 5℃; Stage #2: With sodium 2-ethylhexanoic acid |
chloro-trimethyl-silane
1,1,1,3,3,3-hexamethyl-disilazane
7-aminoceftrizine
C18H29N5O5S2Si2
Conditions | Yield |
---|---|
In dichloromethane for 8h; Heating / reflux; | |
In dichloromethane at 20℃; for 8h; Product distribution / selectivity; Heating / reflux; |
N,O-bis-(trimethylsilyl)-acetamide
7-aminoceftrizine
C18H29N5O5S2Si2
Conditions | Yield |
---|---|
In dichloromethane at 25 - 30℃; for 2h; |
N,O-bis-(trimethylsilyl)-acetamide
7-aminoceftrizine
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 2 - 3h; |
2-amino-4-thiazoleglyoxylic acid (Z)-O-[[(3,4-dihydroxyphenyl)sulphonyl]methyl] oxime
7-aminoceftrizine
2-Bromoacetyl bromide
7-aminoceftrizine
Conditions | Yield |
---|---|
Stage #1: 2-Bromoacetyl bromide; 7-aminoceftrizine With sodium hydrogencarbonate; triethylamine In water; toluene for 2h; Stage #2: In water pH=3; Product distribution / selectivity; Acidic conditions; | |
Stage #1: 2-Bromoacetyl bromide; 7-aminoceftrizine With triethylamine In water; ethyl acetate at 0 - 10℃; Stage #2: In water; ethyl acetate pH=3; Product distribution / selectivity; Acidic conditions; | |
Stage #1: 2-Bromoacetyl bromide; 7-aminoceftrizine With sodium hydrogencarbonate; triethylamine In water; acetone for 1h; Stage #2: With hydrogenchloride In water; acetone pH=3; Product distribution / selectivity; | |
Stage #1: 2-Bromoacetyl bromide; 7-aminoceftrizine With sodium hydrogencarbonate; triethylamine In water; propiononitrile at 0 - 10℃; Stage #2: In water; propiononitrile pH=3; Product distribution / selectivity; Acidic conditions; | |
Stage #1: 2-Bromoacetyl bromide; 7-aminoceftrizine With triethylamine In dichloromethane; water for 2h; Stage #2: With hydrogenchloride In water pH=3; Product distribution / selectivity; |
4-chloro-2(Z)-metoxyimino-3-oxobutyric acid chloride
7-aminoceftrizine
C17H17ClN6O8S2
Conditions | Yield |
---|---|
Stage #1: 7-aminoceftrizine With N,O-bis-(trimethylsilyl)-acetamide In dichloromethane at 35 - 40℃; for 1.5h; Stage #2: 4-chloro-2(Z)-metoxyimino-3-oxobutyric acid chloride In dichloromethane at -10℃; for 0.25h; Stage #3: With sodium carbonate In dichloromethane; water at 4 - 7℃; for 1h; pH=5 - 6; | |
Stage #1: 7-aminoceftrizine With N,N'-bis(trimethylsilyl)urea In dichloromethane at 35 - 40℃; for 5h; Stage #2: 4-chloro-2(Z)-metoxyimino-3-oxobutyric acid chloride In dichloromethane at -15℃; for 0.25h; Stage #3: With sodium carbonate In dichloromethane; water at 4 - 7℃; pH=5.8 - 6; |
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; |
(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
7-aminoceftrizine
ceftriaxone
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sulphurous acid; sodium hydrogensulfite; triethylamine In ethanol; dichloromethane at 0 - 5℃; for 4h; |
2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one
7-aminoceftrizine
Conditions | Yield |
---|---|
With N,N,N',N'-tetramethylguanidine In ethanol; dichloromethane at -10 - -5℃; for 4h; Reagent/catalyst; |
7-aminoceftrizine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: triethylamine / water; ethyl acetate / 0 - 10 °C 1.2: pH 3 / Acidic conditions 2.1: diethylamine / dichloromethane; acetone / pH 5.0 - 7.5 / Heating / reflux View Scheme |
2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetic acid
7-aminoceftrizine
Conditions | Yield |
---|---|
With sulfuryl dichloride; pyrographite; sodium hydrogensulfite; N,N,N',N'-tetramethylguanidine In dichloromethane; water; N,N-dimethyl-formamide at 20℃; for 0.5h; |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View