1.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:517-82-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryechinochrome A CAS:517-82-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediate
Cas:517-82-8
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:517-82-8
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:517-82-8
Min.Order:0
Negotiable
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
Cas:517-82-8
Min.Order:0 Metric Ton
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:517-82-8
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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
Cas:517-82-8
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:517-82-8
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
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
GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
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
J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
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:517-82-8
Min.Order:0
Negotiable
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 in
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
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Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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hight degree of purityAppearance:COA mentioned Storage:COA mentioned Package:Standard or custom package Application:hight degree of purity Transportation:Express/Sea/Air Port:Any port in China
Echinochrome AAppearance:Acicular crystal Application:Pharmaceutical intermediates 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.
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
HuBei 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 pl
Cas:517-82-8
Min.Order:1 Gram
FOB Price: $1.0
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
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Min.Order:0
Negotiable
Type:Lab/Research institutions
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Cas:517-82-8
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
2-ethyl-5,8-dihydroxy-3,6,7-trimethoxy-[1,4]naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
With aluminium trichloride In nitrobenzene at 80℃; for 4h; | 91% |
3-ethyl-3-hydroxy-6,7-diisopropoxy-5,8-dimethoxy-1,4-naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
With boron tribromide In dichloromethane at -78 - 25℃; | 41% |
3-ethyl-1,2,4-trimethoxybenzene
echinochrome A
Conditions | Yield |
---|---|
at 180℃; in einer AlCl3-NaCl-Schmelze; |
1,4-dimethoxy-2,3-diisopropoxybenzene
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 59 percent / s-BuLi; TMEDA / tetrahydrofuran / 2 h / -78 °C 2: 0.33 h / 150 °C 3: CAN / diethyl ether; H2O 4: 0.35 g / air / 7 h 5: 41 percent / BBr3 / CH2Cl2 / -78 - 25 °C View Scheme |
2-ethyl-3-isopropoxy-4-hydroxy-4-(2',5'-dimethoxy-3',4'-diisopropoxyphenyl)-2-cyclobuten-2-one
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 0.33 h / 150 °C 2: CAN / diethyl ether; H2O 3: 0.35 g / air / 7 h 4: 41 percent / BBr3 / CH2Cl2 / -78 - 25 °C View Scheme |
2-ethyl-3,6,7-triisopropoxy-5,8-dimethoxy-[1,4]naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 0.35 g / air / 7 h 2: 41 percent / BBr3 / CH2Cl2 / -78 - 25 °C View Scheme |
2-ethyl-3,6,7-triisopropoxy-5,8-dimethoxy-naphthalene-1,4-diol
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: CAN / diethyl ether; H2O 2: 0.35 g / air / 7 h 3: 41 percent / BBr3 / CH2Cl2 / -78 - 25 °C View Scheme |
2,3-dichloro-5,8-dihydroxy-[1,4]naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 66 percent / MnO2, conc. H2SO4 / 2 h / Ambient temperature 2: 40 percent / 2-methyl-propan-2-ol / Heating 3: 81 percent / 3 h / Heating 4: 74 percent / CsF, Al2O3 / 8 h / 90 - 95 °C 5: 91 percent / AlCl3 / nitrobenzene / 4 h / 80 °C View Scheme |
3-ethyl-1,2,4-trimethoxybenzene
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 61 percent / AlCl3, NaCl / 0.08 h / 190 °C 2: 81 percent / 3 h / Heating 3: 74 percent / CsF, Al2O3 / 8 h / 90 - 95 °C 4: 91 percent / AlCl3 / nitrobenzene / 4 h / 80 °C View Scheme |
2,5,8-trihydroxy-6,7-dichloro-1,4-naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 40 percent / 2-methyl-propan-2-ol / Heating 2: 81 percent / 3 h / Heating 3: 74 percent / CsF, Al2O3 / 8 h / 90 - 95 °C 4: 91 percent / AlCl3 / nitrobenzene / 4 h / 80 °C View Scheme |
2,5,8-trihydroxy-6,7-dichloro-3-ethyl-1,4-naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 81 percent / 3 h / Heating 2: 74 percent / CsF, Al2O3 / 8 h / 90 - 95 °C 3: 91 percent / AlCl3 / nitrobenzene / 4 h / 80 °C View Scheme |
6,7-dichloro-2-ethoxy-3-ethyl-5,8-dihydroxy-1,4-naphthoquinone
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 74 percent / CsF, Al2O3 / 8 h / 90 - 95 °C 2: 91 percent / AlCl3 / nitrobenzene / 4 h / 80 °C View Scheme |
methanol
C12H7Cl3O4
A
6-hydroxy-2,7-dichloro-3-ethylnaphthazarin
B
7-hydroxy-2,6-dichloro-3-ethylnaphthazarin
C
echinochrome A
Conditions | Yield |
---|---|
Stage #1: methanol; C12H7Cl3O4 With aluminum oxide; cesium fluoride Stage #2: Acidic conditions; |
2-ethyl-5,8-dihydroxy-3,6,7-trimethoxy-[1,4]naphthoquinone
A
echinochrome A
B
2,5,8-trihydroxy-6,7-dimethoxy-3-ethyl-1,4-naphthaquinone
Conditions | Yield |
---|---|
Acidic conditions; |
echinochrome A
Conditions | Yield |
---|---|
With bromine In tetrachloromethane at 20℃; for 48h; Irradiation; | 65% |
diazomethane
echinochrome A
2,5,8-trihydroxy-6,7-dimethoxy-3-ethyl-1,4-naphthaquinone
Conditions | Yield |
---|---|
With diethyl ether |
diazomethane
echinochrome A
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
Heating; |
Conditions | Yield |
---|---|
beim Behandeln mit neutralisierter wss.NaOCl-Loesung; |
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: bromine / tetrachloromethane / 48 h / 20 °C / Irradiation 2: diethyl ether / 20 °C 3: sodium azide / dimethyl sulfoxide / 3 h / 65 °C 4: water / Acidic conditions 5: hydrogen bromide / water / 3 h / 100 °C View Scheme |
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: bromine / tetrachloromethane / 48 h / 20 °C / Irradiation 2: diethyl ether / 20 °C 3: sodium azide / dimethyl sulfoxide / 3 h / 65 °C 4: water / Acidic conditions View Scheme |
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: bromine / tetrachloromethane / 48 h / 20 °C / Irradiation 2: diethyl ether / 20 °C 3: sodium azide / dimethyl sulfoxide / 3 h / 65 °C View Scheme |
echinochrome A
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: bromine / tetrachloromethane / 48 h / 20 °C / Irradiation 2: diethyl ether / 20 °C View Scheme |
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