Our 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 present
Cas:56-25-7
Min.Order:1 Gram
FOB Price: $48.0 / 51.0
Type:Trading Company
inquiryDayangChem 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:56-25-7
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:56-25-7
Min.Order:0 Metric Ton
Negotiable
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
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
Product Name:Cantharidin Part Used:Shell Latin Name:Mylabris cichorii L. Specification:99% Appearance:White Powder CAS No.:56-25-7 MF:C6H9NO)n EINECS No.:200-263-3 Appearance:White powder Storage:Store in cool and dry place, away fro
Price, service, company and transport advantage: 1.place of origin china with super quality by reasonable price. 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's custo
Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
Cas:56-25-7
Min.Order:1 Kilogram
FOB Price: $1.0 / 100000.0
Type:Lab/Research institutions
inquiryHangzhou 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
Cas:56-25-7
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
Cas:56-25-7
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:10g/bag,or as your request Application:Used as Pharmaceutical Intermediates Transporta
Cas:56-25-7
Min.Order:1 Gram
Negotiable
Type:Trading Company
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 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:56-25-7
Min.Order:1 Gram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h
Cas:56-25-7
Min.Order:0
Negotiable
Type:Other
inquiryThe quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. COA and HPLC will be shipped out with goods. You can also inform your analysis method and we will follow your analysis me
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
Cas:56-25-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quality in yo
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
Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:56-25-7
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
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:56-25-7
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHigh quality, good effectAppearance:fine powder Storage:cool, dry place Package:1kg/bag, 25kg/drum Application:health supplement Transportation:DHL,TNT,FEDEX,EMS, by air, by sea Port:seed, root,whole plant
Cas:56-25-7
Min.Order:0
Negotiable
Type:Trading Company
inquiryAmoychem 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
BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.Appearanc
furan
2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride
cantharidin
Conditions | Yield |
---|---|
Stage #1: furan; 2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride With 1-butyl-3-methylimidazolium Tetrafluoroborate at 50℃; for 19h; Stage #2: In ethyl acetate for 4h; Reagent/catalyst; Temperature; Reflux; | 90% |
C10H10O4S
cantharidin
Conditions | Yield |
---|---|
With hydrogen In ethyl acetate under 760.051 Torr; Reflux; | 59% |
With hydrogen In ethyl acetate at 50℃; under 1551.49 - 2585.81 Torr; for 20h; | 17% |
With nickel In ethyl acetate Heating; |
furan
2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride
A
epi-catharidin
B
cantharidin
Conditions | Yield |
---|---|
nickel 1.) 7000 bar, 24 h, 2.) ethyl acetate, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given; |
cantharidin
Conditions | Yield |
---|---|
With aluminum isopropoxide; isopropyl alcohol Behandeln des Reaktionsprodukts mit konz. Schwefelsaeure; |
cantharidin
Conditions | Yield |
---|---|
With ozone; ethyl acetate at -40℃; Erhitzen des Reaktionsprodukts mit Essigsaeure und wss. Wasserstoffperoxid; |
Conditions | Yield |
---|---|
at 150℃; im Rohr; |
Conditions | Yield |
---|---|
at -40℃; Erhitzen des Reaktionsprodukts mit Essigsaeure und wss. Wasserstoffperoxid; |
cantharidin
hydrogenchloride
2-hydroxy-3a,7a-dimethyl-hexahydro-4,7-epoxido-isoindole-1,3-dione
A
hydroxylamine
B
cantharidin
Conditions | Yield |
---|---|
at 150℃; im Rohr; |
Conditions | Yield |
---|---|
at 150 - 155℃; |
C10H8O4S
A
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2 / 10percent Pd-C 2: Raney Ni / ethyl acetate / Heating View Scheme |
C10H8O4S
cantharidin
Conditions | Yield |
---|---|
With hydrogen In water; ethyl acetate for 4h; Reflux; | 50 mg |
Multi-step reaction with 2 steps 1: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 2: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: pyridine; trichlorophosphate / benzene / 5 h / 20 - 52 °C 2.1: hydrogenchloride; water; acetic acid / Reflux 3.1: thionyl chloride / Reflux 4.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C 4.2: Raney-Ni / 4 h / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: sodium hydrogensulfite / water; methanol / 16 h / 20 °C / pH 7 - 8 2.1: pyridine; trichlorophosphate / benzene / 5 h / 20 - 52 °C 3.1: hydrogenchloride; water; acetic acid / Reflux 4.1: thionyl chloride / Reflux 5.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C 5.2: Raney-Ni / 4 h / Reflux View Scheme | |
Multi-step reaction with 7 steps 1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere 2: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr 3: sodium hydroxide; water / tetrahydrofuran / 2.5 h 4: acetyl chloride / toluene / 4 h / Reflux 5: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 6: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 7: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
3-cyano-2,5-dihydrothiophene-4-carboxylic acid methyl ester
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: hydrogenchloride; water; acetic acid / Reflux 2.1: thionyl chloride / Reflux 3.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C 3.2: Raney-Ni / 4 h / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: methanol; lithium / 7 h / 20 °C / Inert atmosphere; Reflux 2: hydrogenchloride / water / pH Ca. 5 3: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere 4: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr 5: sodium hydroxide; water / tetrahydrofuran / 2.5 h 6: acetyl chloride / toluene / 4 h / Reflux 7: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 8: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 9: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: hydrogenchloride / water / pH Ca. 5 2: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere 3: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr 4: sodium hydroxide; water / tetrahydrofuran / 2.5 h 5: acetyl chloride / toluene / 4 h / Reflux 6: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 7: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 8: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
methyl 4-{[(trifluoromethyl)sulfonyl]oxy}-2,5-dihydrothiophene-3-carboxylate
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr 2: sodium hydroxide; water / tetrahydrofuran / 2.5 h 3: acetyl chloride / toluene / 4 h / Reflux 4: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 5: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 6: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
3,4-dimethyl 2,5-dihydrothiophene-3,4-dicarboxylate
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: sodium hydroxide; water / tetrahydrofuran / 2.5 h 2: acetyl chloride / toluene / 4 h / Reflux 3: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 4: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 5: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: acetyl chloride / toluene / 4 h / Reflux 2: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 3: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 4: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride
cantharidin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C 2: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr 3: hydrogen / ethyl acetate / 760.05 Torr / Reflux View Scheme |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 96% |
Conditions | Yield |
---|---|
In water 1.) reflux, 4 h, 2.) 200 deg C, 1 h; | 93% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 93% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 92% |
Nδ-(tert-butoxycarbonyl)-L-ornithine
cantharidin
(S)-5-tert-Butoxycarbonylamino-2-((1S,2R,6S,7R)-2,6-dimethyl-3,5-dioxo-10-oxa-4-aza-tricyclo[5.2.1.02,6]dec-4-yl)-pentanoic acid
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 48h; | 92% |
cantharidin
7-oxabicyclo<2.2.1>heptane-2,3-dimethyl-2,3-dicarboxylic acid imide
Conditions | Yield |
---|---|
With ammonium hydroxide at 180℃; for 2h; | 91% |
With ammonium hydroxide 1.) reflux, 2 h, 2.) 200 deg C, 1 h; | 66% |
(i) aq. NH3, (ii) (heating); Multistep reaction; | |
With ammonia |
2-amino-4-phenyl-1,3,5-thiadiazole
cantharidin
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 91% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 90% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 89% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 180℃; for 24h; | 89% |
Conditions | Yield |
---|---|
With acetic acid Sealed tube; | 89% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 88% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 87% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 86% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 180℃; for 24h; | 86% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 180℃; for 24h; | 85% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 84% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 83% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 83% |
Conditions | Yield |
---|---|
In ethanol at 20℃; for 2.5h; Acylation; Heating; | 80.1% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 79% |
With triethylamine In toluene at 200℃; for 2h; | 52% |
Conditions | Yield |
---|---|
With acetic acid at 135℃; for 12h; Sealed tube; | 79% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 77% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 76% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 74% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 180℃; for 5h; | 73% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 72% |
With triethylamine In toluene at 200℃; for 2h; | 62% |
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 69% |
cantharidin
Conditions | Yield |
---|---|
With triethylamine In toluene at 200℃; for 2h; | 69% |
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