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 services. DayangChem can provide different quantities of custom synthesis ch
Cas:432-68-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:432-68-8
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:432-68-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryECHINENONE CAS:432-68-8 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 intermediates,
Cas:432-68-8
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:432-68-8
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
Hangzhou 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
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:432-68-8
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
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
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
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.
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
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Shanghai LONGBANG , Boasts strong competitive advantages by our well-trained chemists with rich professional backgroud. We aim to win the market via quick response and fast delivery, as well as continous development for high-tech medical compoun
b,b-Caroten-4-oneAppearance:Off white to slight yellow solid Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,by Air,By courier like
Supply top quality products with a reasonable price Application:api
Conditions | Yield |
---|---|
With sodium ethanolate In ethanol at 24 - 80℃; for 3h; Temperature; Reagent/catalyst; Solvent; Wittig Olefination; Inert atmosphere; | 89.18% |
Conditions | Yield |
---|---|
With chloroform |
Conditions | Yield |
---|---|
With N-Bromosuccinimide; chloroform at -18℃; unter Stickstoff; Versetzen der Reaktionsloesung mit 1-Phenyl-morpholin, anschliessendes Erhitzen und Schuetteln des mit Hexan versetzten Reaktionsgemisches mit wss. HCl; |
5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one
1-(diethylamino)pentan-3-one methiodide
echinenone
Conditions | Yield |
---|---|
With ethanol; potassium ethoxide; benzene |
5,6-seco-β,β-carotene-4,6-dione
echinenone
Conditions | Yield |
---|---|
With potassium hydroxide; benzene |
15-cis-β,β-caroten-4-one
echinenone
Conditions | Yield |
---|---|
With iodine; Petroleum ether Irradiation; |
all-trans 4-acetoxyretinal
echinenone
Conditions | Yield |
---|---|
(i) NaOMe, MeOH, benzene, (ii) KOH, MeOH, (iii) Al(OiPr)3, benzene, acetone; Multistep reaction; |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: ethanolic KOH 2: ethanolic potassium ethylate; benzene 3: Lindlar-catalyst; ethyl acetate / Hydrogenation 4: iodine; petroleum ether / Irradiation View Scheme |
5-(2-ethyl-[1,3]dioxolan-2-yl)-3,3-dimethyl-pentan-2-one
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: ethanolic KOH-solution 2: toluene-4-sulfonic acid 3: methanol. KOH; benzene View Scheme |
4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: diethyl ether 2: ethanolic KOH-solution 3: toluene-4-sulfonic acid 4: methanol. KOH; benzene View Scheme |
4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid methyl ester
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: aqueous methanol. NaOH-solution 2: diethyl ether 3: ethanolic KOH-solution 4: toluene-4-sulfonic acid 5: methanol. KOH; benzene View Scheme |
15,15'-didehydro-8'-apo-β-caroten-8'-al
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: ethanolic KOH 2: ethanolic potassium ethylate; benzene 3: Lindlar-catalyst; ethyl acetate / Hydrogenation 4: iodine; petroleum ether / Irradiation View Scheme |
15,15'-didehydro-5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: ethanolic potassium ethylate; benzene 2: Lindlar-catalyst; ethyl acetate / Hydrogenation 3: iodine; petroleum ether / Irradiation View Scheme |
15,15'-didehydro-β,β-caroten-4-one
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Lindlar-catalyst; ethyl acetate / Hydrogenation 2: iodine; petroleum ether / Irradiation View Scheme |
4,4-ethanediyldioxy-5,6-seco-β,β-caroten-6-one
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene-4-sulfonic acid 2: methanol. KOH; benzene View Scheme |
isocryptoxanthin
echinenone
Conditions | Yield |
---|---|
With β-carotene 4-ketolase In aq. phosphate buffer at 28℃; for 16h; pH=7.8; Enzymatic reaction; |
echinenone
Conditions | Yield |
---|---|
With Lawessons reagent In benzene at 40℃; for 4h; | 7% |
echinenone
Conditions | Yield |
---|---|
With lithium aluminium deuteride In diethyl ether |
echinenone
Conditions | Yield |
---|---|
In dichloromethane electrooxidation, comproportionation equilibrium constants, deprotonation equilibrium constant; |
echinenone
3-Hydroxy-2,3-didehydro-β,β-carotin-4-on
Conditions | Yield |
---|---|
With potassium tert-butylate; oxygen |
echinenone
isocryptoxanthin
Conditions | Yield |
---|---|
With sodium tetrahydroborate | |
With sodium tetrahydroborate | |
With lithium aluminium tetrahydride In diethyl ether |
echinenone
Conditions | Yield |
---|---|
With trifluoroacetic acid |
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: NaBH4 2: CF3COOH / CHCl3 / -20 °C 3: H2O / acetone / -10 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 2: aq. HCl / CHCl3 / 0.33 h / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: sodium borohydride 2: HCl / CHCl3 / 20 °C View Scheme |
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 2: aq. HCl / CHCl3 / 0.33 h / 20 °C View Scheme |
echinenone
β-carotene cation radical
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 2: CF3COOH / CHCl3 / -20 °C View Scheme |
echinenone
4',5'-didehydro-4,5'-retro-β,β-carotene
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium borohydride 2: HCl / CHCl3 / 20 °C View Scheme |
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium borohydride 2: trifluoroacetic acid / CH2Cl2 / -20 °C View Scheme |
echinenone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium borohydride 2: trifluoroacetic acid / CH2Cl2 / -20 °C View Scheme |
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