1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:520-31-0
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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:520-31-0
Min.Order:1 Kilogram
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
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
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
GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Zhenyu 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
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:520-31-0
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryhigh 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
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.
best seller Application:API
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
Appearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
good quality, competitive price, thoughtful after sale serviceAppearance:White to Off-White Solid Storage:Keep it in dry,shady and cool place Package:as your requirement Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by Sea
best seller Application:API
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
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:5mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port
bulk production Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical manufacturing for overseas customers, in the field of API, pharmaceutical intermediates, chemical intermediates, fine ch
best seller Application:API
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Price, 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
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Chengdu Push Bio-technology Co., Ltd. provides more than 4,000 natural monomeric substances, including approximately 6,000 products at different grades, specifications and purities. We have specialized in the R&D of medicinally active ingredients sta
Tricetin manufacturerAppearance:White powder Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like DHL or Fedx. Port:Shangha
High pure standard, Quick shippment COA with HPLC, MS and NMR spectra. Package:5mg Application:pharmaceutical industry, food industry, research
TricetinAppearance:Off white to slight yellow solid Storage:Stored in shaded, cool and dry places Package:1L 5L 10L 25L bottle Application:pharma intermediate Transportation:Handle with cares to avoid damaging the packages. Protect them from sunshine
5,7-Dimethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one
tricetin
Conditions | Yield |
---|---|
With pyridine hydrochloride at 240 - 245℃; for 0.833333h; | 80% |
With hydrogen bromide In water Reflux; | 28% |
5,7-dihydroxy-3',4',5'-trimethoxyflavone
tricetin
Conditions | Yield |
---|---|
With hydrogen bromide In acetic acid for 23h; Heating; | 38% |
With hydrogen iodide; acetic anhydride |
tricetin
Conditions | Yield |
---|---|
Stage #1: 4,6-bis(methoxymethyl)-2-(3,4,5-triacetoxybenzoyloxy)acetophenone With potassium hydroxide In pyridine at 50℃; for 0.333333h; Stage #2: With acetic acid In pyridine; water for 0.5h; Stage #3: With hydrogenchloride In methanol Reflux; | 10% |
tricetin
Conditions | Yield |
---|---|
With hydrogen iodide |
tricetin
Conditions | Yield |
---|---|
With hydrogen iodide; acetic anhydride |
tricetin
Conditions | Yield |
---|---|
With hydrogen iodide; acetic anhydride |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium-<3,4,5-trimethoxy benzoate> / 175 °C / anschliessend Erwaermen mit wss.-aethanol. Kalilauge und Erwaermen des Reaktionsprodukts mit Essigsaeure 2: aqueous hydriodic acid; acetic acid anhydride View Scheme | |
Multi-step reaction with 2 steps 1: sodium-<3,4,5-trimethoxy benzoate> / 175 °C / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Kalilauge 2: aqueous hydriodic acid; acetic acid anhydride View Scheme | |
Multi-step reaction with 5 steps 1: potassium carbonate / acetone / 16 h / 20 °C 2: potassium carbonate / acetone / 24 h / 20 °C / Inert atmosphere 3: pyridine; sodium hydroxide / 2 h / 50 °C / Inert atmosphere 4: acetic acid; sulfuric acid / 5 h / 90 °C 5: pyridine hydrochloride / 0.83 h / 240 - 245 °C View Scheme | |
Multi-step reaction with 4 steps 1: potassium carbonate / acetone / 4 h / Inert atmosphere; Reflux 2: potassium hydroxide / ethanol / 24 h / 0 - 20 °C / Inert atmosphere 3: 2,3-dicyano-5,6-dichloro-p-benzoquinone / 1,4-dioxane / 12 h / 80 °C / Sealed tube 4: hydrogen bromide / water / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium-<3,4,5-trimethoxy benzoate> / 175 °C / anschliessend Erwaermen mit wss.-aethanol. Kalilauge und Erwaermen des Reaktionsprodukts mit Essigsaeure 2: aqueous hydriodic acid; acetic acid anhydride View Scheme | |
Multi-step reaction with 2 steps 1: sodium-<3,4,5-trimethoxy benzoate> / 175 °C / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Kalilauge 2: aqueous hydriodic acid; acetic acid anhydride View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium / 140 °C 2: hydriodic acid View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium / 140 °C 2: hydriodic acid View Scheme |
3,4,5-triacetoxybenzoyl chloride
tricetin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: pyridine / 20 °C 2.1: potassium hydroxide / pyridine / 0.33 h / 50 °C 2.2: 0.5 h 2.3: Reflux View Scheme |
tricetin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sodium hydroxide / water / 0.17 h / 0 °C 1.2: 0 °C 2.1: pyridine / 20 °C 3.1: potassium hydroxide / pyridine / 0.33 h / 50 °C 3.2: 0.5 h 3.3: Reflux View Scheme |
3,4,5-triacetoxy-benzoic acid methyl ester
tricetin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: thionyl chloride / chloroform; N,N-dimethyl-formamide / Reflux 2.1: pyridine / 20 °C 3.1: potassium hydroxide / pyridine / 0.33 h / 50 °C 3.2: 0.5 h 3.3: Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: potassium carbonate / acetone / 24 h / 20 °C / Inert atmosphere 2: pyridine; sodium hydroxide / 2 h / 50 °C / Inert atmosphere 3: acetic acid; sulfuric acid / 5 h / 90 °C 4: pyridine hydrochloride / 0.83 h / 240 - 245 °C View Scheme | |
Multi-step reaction with 3 steps 1: potassium hydroxide / ethanol / 24 h / 0 - 20 °C / Inert atmosphere 2: 2,3-dicyano-5,6-dichloro-p-benzoquinone / 1,4-dioxane / 12 h / 80 °C / Sealed tube 3: hydrogen bromide / water / Reflux View Scheme |
2-acetyl-3,5-dimethoxyphenyl-3,4,5-trimethoxyphenyl ester
tricetin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: pyridine; sodium hydroxide / 2 h / 50 °C / Inert atmosphere 2: acetic acid; sulfuric acid / 5 h / 90 °C 3: pyridine hydrochloride / 0.83 h / 240 - 245 °C View Scheme |
(E)-1-(2′-hydroxy-4′,6′-dimethoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
tricetin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / 1,4-dioxane / 12 h / 80 °C / Sealed tube 2: hydrogen bromide / water / Reflux View Scheme |
Conditions | Yield |
---|---|
With dmap; triethylamine In tetrahydrofuran at 20℃; | 92% |
tricetin
tricetin
S-adenosyl-L-methionine
5,7,4'trihydroxy-3',5'-dimethoxyflavone
Conditions | Yield |
---|---|
With Citrus reticulata O-methyltransferase gene-pET32a recombinant In aq. buffer at 37℃; for 2h; pH=8; Kinetics; Enzymatic reaction; |
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