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
Cas:3947-65-7
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryAs 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 according to the contract research and development services for the fine chemicals, ph
1.In No Less 10 years exporting experience. you 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 Specializ
Cas:3947-65-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry(1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOL CAS:3947-65-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and devel
Cas:3947-65-7
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:3947-65-7
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
Cas:3947-65-7
Min.Order:0
Negotiable
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
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
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
1.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
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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
1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirybulk 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
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAnsciep 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:3947-65-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryNeamine Application:Neamine
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 courier/air/sea Port:Any port of China
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Trading Company
inquiry(1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOLAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediat
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Other
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryNeamineAppearance:white powder Storage:Shading, sealed, dry place. Package:aluminous bag Application:API Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL for large amount.
Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
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:any port in China
Quality assurance, stable process and affordable priceAppearance:detailed see specifications Storage:enquiry Package:according to the clients requirement Application:Pharmaceutical intermediates Transportation:Normal Port:chengdu
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:any port in China
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Trading Company
inquiry1.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:3947-65-7
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryBetterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in
Cas:3947-65-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & CommercialHenan Fine Chemicals Co., LTD. is a diversified technology - oriented integrated company, which mainly concentrates on fine chemicals. Our company is committed to becom
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Trading Company
inquiryHuBei ipure is a diversified product production and operation enterprise, with API, pharma intermediates, and other fine chemicals as well as R&D and pigments development and sales as one of the large enterprises, with more than 130 acres of plant in
Cas:3947-65-7
Min.Order:1 Metric Ton
FOB Price: $1.0 / 2.0
Type:Trading Company
inquiryUnited Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat
Cas:3947-65-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry(1S,2R,3R,4S,6R)-4,6-Diamino-3-((2R,3R,4R,5R,6R)-3-amino-6-aminomethyl-4,5-bis-benzyloxy-tetrahydro-pyran-2-yloxy)-cyclohexane-1,2-diol
neomycin A
Conditions | Yield |
---|---|
With hydrogen; 20% palladium hydroxide on carbon In water; acetic acid | 91% |
With hydrogen; acetic acid; palladium dihydroxide |
Conditions | Yield |
---|---|
With hydrogenchloride In methanol for 6h; Heating; | 82% |
With hydrogenchloride In methanol for 4h; Reflux; | 80% |
Stage #1: neomycin B With hydrogenchloride; methanol for 16h; acidic methanolysis; Stage #2: With Amberlite IRA-400 (OH-) In methanol for 0.5h; Hydrolysis; | 67% |
With water Acidic conditions; Inert atmosphere; |
neomycin A
Conditions | Yield |
---|---|
Stage #1: neomycin B trisulfate With hydrogenchloride In methanol for 6h; Heating; Stage #2: With ammonium hydroxide; ammonia In methanol Further stages.; | 70% |
neomycin B trisulfate
neomycin A
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 80℃; for 3h; pH=< 1; | 67% |
neomycin B sulphate
A
furfural
B
β-D-ribofuranose
C
neomycin A
D
2,6-dideoxy-2,6-diamino-D-glucose
Conditions | Yield |
---|---|
Product distribution; Rate constant; Irradiation; multistep reaction, radiolytic degradation; |
neomycin B sulphate
A
furfural
B
β-D-ribofuranose
C
neomycin A
Conditions | Yield |
---|---|
Product distribution; Rate constant; Irradiation; multistep reaction, radiolytic degradation; |
neomycin A
Conditions | Yield |
---|---|
With hydrogenchloride; methanol | |
With hydrogenchloride |
1,3,4,6-tetra-O-acetyl-2-azido-2-deoxy-D-glucopyranose
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: 90 percent / ZnI2 / 1,2-dichloro-ethane / 50 °C 2: 98 percent / NaOMe / methanol 3: 94 percent / pyridine 4: 100 percent / NaN3 / dimethylformamide / 80 °C 5: 86 percent / NaH / dimethylformamide 6: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 7: NaOMe / methanol 8: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 9: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
phenyl 2-azido-2-deoxy-1-thio-α/β-D-glucopyranoside
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 94 percent / pyridine 2: 100 percent / NaN3 / dimethylformamide / 80 °C 3: 86 percent / NaH / dimethylformamide 4: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 5: NaOMe / methanol 6: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 7: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
phenyl 2-azido-2-deoxy-3,4,6-tri-O-acetyl-1-thio-α/β-D-glucopyranoside
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 98 percent / NaOMe / methanol 2: 94 percent / pyridine 3: 100 percent / NaN3 / dimethylformamide / 80 °C 4: 86 percent / NaH / dimethylformamide 5: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 6: NaOMe / methanol 7: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 8: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
phenyl 2,6-diazido-2,6-dideoxy-1-thio-α/β-D-glucopyranoside
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 86 percent / NaH / dimethylformamide 2: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 3: NaOMe / methanol 4: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 5: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
Toluene-4-sulfonic acid (2R,3S,4R,5R)-5-azido-3,4-dihydroxy-6-phenylsulfanyl-tetrahydro-pyran-2-ylmethyl ester
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 100 percent / NaN3 / dimethylformamide / 80 °C 2: 86 percent / NaH / dimethylformamide 3: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 4: NaOMe / methanol 5: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 6: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
(3R,4R,5R,6R)-3-Azido-6-azidomethyl-4,5-bis-benzyloxy-2-phenylsulfanyl-tetrahydro-pyran
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: N-iodosuccinimide; silver trifluoromethanesulfonate / diethyl ether; CH2Cl2 / -20 °C 2: NaOMe / methanol 3: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 4: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
3′,4′-di-O-benzyl-1,3,2′,6′-tetraazidoneamine
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 2: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme | |
Multi-step reaction with 2 steps 1: trimethylphosphane / tetrahydrofuran 2: hydrogen / 20% palladium hydroxide on carbon / water; acetic acid View Scheme |
5,6-di-O-acetyl-3',4'-di-O-benzyl-1,3,2',3'-tetraazidoneamine
neomycin A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: NaOMe / methanol 2: P(CH3)3; 0.1 N aq. NaOH / tetrahydrofuran 3: H2; aq. AcOH / 20 percent Pd(OH)2/C View Scheme |
neomycin B sulphate
neomycin A
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
With acetic acid |
neomycin A
benzyl chloroformate
N,N',N'',N'''-tetra(benzyloxycarbonyl)neamine
Conditions | Yield |
---|---|
With sodium carbonate In acetone | 95% |
With sodium hydrogencarbonate In acetone; toluene at 4℃; | 86% |
di-tert-butyl dicarbonate
neomycin A
{(1R,2S,3R,4R,5S)-5-tert-Butoxycarbonylamino-4-[(2R,3R,4R,5S,6R)-3-tert-butoxycarbonylamino-6-(tert-butoxycarbonylamino-methyl)-4,5-dihydroxy-tetrahydro-pyran-2-yloxy]-2,3-dihydroxy-cyclohexyl}-carbamic acid tert-butyl ester
Conditions | Yield |
---|---|
95% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 92% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 92% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 91% |
di-tert-butyl dicarbonate
neomycin A
Conditions | Yield |
---|---|
With triethylamine In methanol; water at 20℃; for 2h; | 91% |
neomycin A
2-Chloro-benzoic acid (1R,2S,6R,7S)-3,5-dioxo-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yl ester
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 90% |
In water; acetonitrile at 20℃; for 0.5h; | 90 %Chromat. |
neomycin A
1,3,2′,6′-tetraazidoneamine
Conditions | Yield |
---|---|
With triflic azide; copper(II) sulfate; triethylamine In methanol; dichloromethane; water Inert atmosphere; | 90% |
With triflic azide; copper(II) ion | 77% |
With triflic azide; copper(II) sulfate; triethylamine |
γ-L-Glu-((S)-4-amino-2-hydroxybutyryl)-N-acetylcysteamine thioester
neomycin A
γ-L-Glu-[(S)-4-amino-2-hydroxybutyryl]-neamine
Conditions | Yield |
---|---|
With recombinant BtrH enzyme at 20℃; for 6h; pH=7.9; aq. buffer; Enzymatic reaction; | 90% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 89% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 87% |
neomycin A
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 85% |
In water; acetonitrile at 20℃; for 0.5h; | 85% |
neomycin A
N-benzoyloxy-5-norbornene-endo-2,3-dicarboximide
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 80% |
In water; acetone for 1h; | 80% |
In water; acetonitrile at 20℃; for 0.5h; | 80% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide | 77% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 77% |
neomycin A
trifluoroacetic anhydride
1,2',3,6'-tetrakis-N-(trifluoroacetyl)neamine
Conditions | Yield |
---|---|
With triethylamine In acetonitrile for 1h; Ambient temperature; | 75.3% |
neomycin A
Phenyl-acetic acid (1R,2S,6R,7S)-3,5-dioxo-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yl ester
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 75% |
In water; acetonitrile at 20℃; for 0.5h; | 75% |
Conditions | Yield |
---|---|
In water; acetone for 1h; | 75% |
neomycin A
N-benzyloxycarbonyloxy-5-norbornene-endo-2,3-dicarboximide
6'-N-benzyloxycarbonylneamine
Conditions | Yield |
---|---|
In 1,4-dioxane; water at 20℃; for 6h; | 72% |
endo-N-hydroxy-5-norbornene-2,3-dicarboximide O-bromoacetate
neomycin A
N-6'-bromoacetylneamine
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 70% |
In water; acetone for 1h; | 70% |
In water; acetone for 0.25h; Sonication; | |
In water; acetonitrile for 0.166667h; Product distribution / selectivity; | |
In water; acetone for 0.166667h; |
neomycin A
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 70% |
In water; acetonitrile at 20℃; for 0.5h; | 70 %Chromat. |
neomycin A
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 70% |
In water; acetonitrile at 20℃; for 0.5h; | 70 %Chromat. |
neomycin A
acetone O-<(vinyloxy)carbonyl>oxime
{(1R,2S,3R,4R,5S)-4-[(2R,3R,4R,5S,6R)-4,5-Dihydroxy-3-vinyloxycarbonylamino-6-(vinyloxycarbonylamino-methyl)-tetrahydro-pyran-2-yloxy]-2,3-dihydroxy-5-vinyloxycarbonylamino-cyclohexyl}-carbamic acid vinyl ester
Conditions | Yield |
---|---|
With sodium hydroxide In phosphate buffer at 0℃; for 5h; pH=8.0; | 66% |
neomycin A
6'-N-(tert-Butoxycarbonyl)neamine
Conditions | Yield |
---|---|
In 1,4-dioxane; water for 5h; Ambient temperature; | 65% |
With triethylamine In 1,4-dioxane; water at 20℃; for 15.1667h; |
2-acetoxy-(3ac,7ac)-3a,4,7,7a-tetrahydro-4r,7c-methano-isoindole-1,3-dione
neomycin A
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; sonication; | 60% |
In water; acetone for 1h; | 60% |
In water; acetonitrile at 20℃; for 0.5h; | 60% |
neomycin A
6'-N-[Nα-[(thymin-1-yl)acetyl]-Nε-(2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-sulfonyl)-DL-arginyl]neamine
Conditions | Yield |
---|---|
Stage #1: Nα-[(thymin-1-yl)acetyl]-Nε-(2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-sulfonyl)-L-arginine With WSC*HCl In N,N-dimethyl-formamide for 3h; Stage #2: neomycin A In water; N,N-dimethyl-formamide for 20h; | 58.3% |
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