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 according to the contract research and development services for the fine chemicals, ph
Hello, 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:187865-22-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur 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
Henan 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:187865-22-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur 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
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:187865-22-1
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:187865-22-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:187865-22-1
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiry1,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
Cas:187865-22-1
Min.Order:1 Kilogram
FOB Price: $1.0
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:187865-22-1
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
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
Cas:187865-22-1
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:Active Pharmaceutical I
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
Lower 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
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:187865-22-1
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:187865-22-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
Supply top quality products with a reasonable price Application:api
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
DerquantelAppearance:ask Storage:Keep in dry and cool condition Package:foil aluminium bag/vacuum packing Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by se
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:187865-22-1
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiryPrice, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
United 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:187865-22-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,Best Quality: Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so
Spiro[4H,8H-[1,4]dioxepino[2,3-g]indole-8,7'(8'H)-[5H,6H-5a,9a](iminomethano)[1H]cyclopent[f]indolizin]-10'-one,2',3',8'a,9,9',10-hexahydro-1'-hydroxy-1',4,4,8',8',11'-hexamethyl-,(1'R,5'aS,7'R,8'aS,9 Storage:keep in dry and cool condition Package:25
Cas:187865-22-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryC28H35N3O4
Derquantel
Conditions | Yield |
---|---|
With sodium tetrahydroborate In methanol at 0℃; | 80% |
Paraherquamide
Derquantel
Conditions | Yield |
---|---|
With lithium borohydride |
C43H47N3O7
Derquantel
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: piperidine / tetrahydrofuran 2: 80 percent / NaBH4 / methanol / 0 °C View Scheme |
Derquantel
14,17-anhydro-2-desoxoparaherquamide A
Conditions | Yield |
---|---|
With dmap; diethylamino-sulfur trifluoride In dichloromethane at 20℃; for 1h; | 50% |
Derquantel
14-oxo-2-desoxo-1,2-anhydro-17-norparaherquamide A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2: 12 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3: 41 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C View Scheme |
Derquantel
14-oxo-2-desoxo-17-norparaherquamide A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2: 12 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3: 41 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C 4: 50 percent / NaBH3CN / methanol / 0.5 h / 0 °C View Scheme | |
Multi-step reaction with 3 steps 1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2: 25 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3: 58 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C View Scheme |
Derquantel
17-hydroxy-2-desoxo-1,2-anhydroparaherquamide A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2: 12 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C View Scheme |
Derquantel
17-hydroxy-2-desoxoparaherquamide A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2: 25 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C View Scheme |
Derquantel
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2.1: 12 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3.1: 41 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C 4.1: tetrahydrofuran / 1 h / -78 - 0 °C 4.2: 50 percent / NaBH3CN / methanol / 0.5 h / 0 °C View Scheme | |
Multi-step reaction with 5 steps 1.1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2.1: 12 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3.1: 41 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C 4.1: 50 percent / NaBH3CN / methanol / 0.5 h / 0 °C 5.1: tetrahydrofuran / 1 h / -78 - 0 °C 5.2: 20 percent / NaBH3CN / methanol / 0.5 h / 0 °C View Scheme | |
Multi-step reaction with 4 steps 1.1: 50 percent / DMAP; (diethylamino)sulfurtrifluoride / CH2Cl2 / 1 h / 20 °C 2.1: 25 percent / osmium tetroxide; 4-methylmorpholine N-oxide / tetrahydrofuran; H2O; 2-methyl-propan-2-ol / 18 h / 5 °C 3.1: 58 percent / sodium periodate / tetrahydrofuran; H2O / 16 h / 5 °C 4.1: tetrahydrofuran / 1 h / -78 - 0 °C 4.2: 20 percent / NaBH3CN / methanol / 0.5 h / 0 °C View Scheme |
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