Dayangchem's 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. DayangChem can provide different quantities
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:479-90-3
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:479-90-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryChengdu Biopurify Phytochemicals Ltd. is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medic
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:479-90-3
Min.Order:0
Negotiable
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
Cas:479-90-3
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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 method
Hangzhou 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
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:Herbal extr
Cas:479-90-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:479-90-3
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
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
ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac
hight degree of purity Application:Fine chemical intermediates, used as the main raw material for he synthesis of various pesticides, medicines, surfactants, polymer monomers, Ond Ontifungal agents
Cas:479-90-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate
Cas:479-90-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryArtemisetinAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
We are professional supplier in China for this product, we are dedicated to providing customers with the best quality, price, and service. Please feel free to send us inquiries.Appearance:Please contact us for product details Package:As per shipment
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:20mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any por
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment terms accepted (Btc;MoneyGram;WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery (3-10 DAYS fast deli
Cas:479-90-3
Min.Order:1 Kilogram
FOB Price: $8.0 / 10.0
Type:Trading Company
inquiryPurification of platform in separation of natural products Heb reference substance supply center Process development engineering center for products High purity & competitive price & good service Appearance:white powder Stor
Product No. : A0962 Name: Artemisetin Alias: 3,6,7,3 CAS No.: 479-90-3 Formula: C20H20O8
Cas:479-90-3
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryHigh purity , competitive price , warm sevice , providing HPLC ,MS , NMR , COA. The quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. Package Size: 10mg/25mg standard packing or acc
1.Purification of platform in separation of natural products 2.Heb reference substance supply center 3.Process Development Engineering Center for products 4.High purity&competitive price&good service. Appearance:white powder Storag
Shaanxi Cuicheng Biomedical Technology Co., Ltd. is located in Chuangzhi Industrial Park, Economic and Technological Development Zone, Hanzhong City, Shaanxi Province, China. It is a company specializing in natural medicines and high-throughput scree
Hight Quality Cas No.: 479-90-3 Formula: C20H20O8 Mol Weight: 388.372 Botanical Source: "Artemisia spp., Kuhnia eupatorioides" Physical Description: Yellow powder Type of Compound: Flavonoids Analysis Method: HPLC-DAD or/and HPLC-
Hangzhou Haiqiang 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 qualit
Natural extractedAppearance:Powder Storage:2~8℃, protected from light and air Package:Tailored by requirement Application:R&D use only not for drug, household or other purpose. Transportation:via FedEx, DHL, EMS
1.We have rich experience in the development and production 2.Our factory is in Shanghai of China,We have convenient traffic conditions.3.We have advanced testing equipment and shipping line. Package:5g, 10g, 50g, 100g, 1kg Application:Pharmaceutical
Conditions | Yield |
---|---|
With aluminum tri-bromide In acetonitrile at 0 - 5℃; for 0.333333h; | 95% |
With boron trichloride In tetrahydrofuran at -78℃; | 79% |
5,6-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7-dimethoxychromen-4-one
artemetin
Conditions | Yield |
---|---|
With sodium hydride; methyl iodide In N,N-dimethyl-formamide at 20℃; | 32% |
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 5 - 10℃; | 32% |
artemetin
Conditions | Yield |
---|---|
With sodium 3,4-dimethoxybenzoate at 180 - 190℃; Verseifen des Reaktionsprodukts mit waessrig-alkoholischer Kalilauge; |
Conditions | Yield |
---|---|
With diethyl ether; dichloromethane |
Conditions | Yield |
---|---|
With potassium carbonate; acetone |
Conditions | Yield |
---|---|
With methanol Behandeln der Reaktions-Loesung mit methylalkoholischer Kalilauge; | |
With methanol Behandeln der Reaktionsloesung mit methylalkoholischer Kalilauge; |
1-(3,6-dihydroxy-2,4-dimethoxy-phenyl)-2-methoxy-ethanone
artemetin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 95 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C View Scheme |
3,4-dimethoxybenzoic anhydride
artemetin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 95 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C View Scheme |
5,6,7,4'-tetramethoxyflavone
sinensetin
tangeritin
3,5,6,7,3',4'-Hexamethoxyflavon
nobiletin
3,3',4',5,6,7,8-heptamethoxyflavone
A
gardenin B
B
5-hydroxy-4',6,7-trimethoxyflavone
C
5-desmethylsinensetin
D
artemetin
E
5-hydroxy-6,7,8,3',4'-pentamethoxyflavone
F
5-hydroxy-3,6,7,8,3',4'-hexamethoxyflavone
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol at 80℃; for 18 - 70h; Product distribution / selectivity; Heating / reflux; | |
With hydrogenchloride; ethanol; water at 80℃; for 18h; Conversion of starting material; Heating / reflux; | |
With ethanol; water for 24h; Product distribution / selectivity; Heating / reflux; |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; for 96h; | 20 mg |
artemetin
p-toluenesulfonyl chloride
Toluene-4-sulfonic acid 2-(3,4-dimethoxy-phenyl)-3,6,7-trimethoxy-4-oxo-4H-chromen-5-yl ester
Conditions | Yield |
---|---|
With potassium carbonate In acetone Heating; | 95% |
artemetin
2-(3,4-dimethoxy-phenyl)-5,8-dihydroxy-3,6,7-trimethoxy-chromen-4-one
Conditions | Yield |
---|---|
With pyridine; potassium hydroxide; dipotassium peroxodisulfate Erwaermen des Reaktionsgemisches mit wss. Salzsaeure und Natriumsulfit; |
artemetin
acetic anhydride
5-acetoxy-2-(3,4-dimethoxy-phenyl)-3,6,7-trimethoxy-chroman-4-one
Conditions | Yield |
---|---|
With pyridine |
artemetin
3,5-dihydroxy-6,7,3′,4′-tetramethoxyflavone
Conditions | Yield |
---|---|
With aluminium trichloride for 24h; Heating; | 15 mg |
With aniline hydrochloride | |
Multi-step reaction with 3 steps 1: 95 percent / K2CO3 / acetone / Heating 2: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 3: 88 percent / K2CO3 / methanol / 2 h / Heating View Scheme |
artemetin
A
3,5-dihydroxy-6,7,3′,4′-tetramethoxyflavone
B
3,5-dihydroxy-7,8,3',4'-tetramethoxyflavone
Conditions | Yield |
---|---|
With hydrogenchloride for 2h; Heating; | A 30 mg B 20 mg |
artemetin
Acetic acid 3-acetoxy-2-(3,4-dimethoxy-phenyl)-6,7-dimethoxy-4-oxo-4H-chromen-5-yl ester
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 95 percent / K2CO3 / acetone / Heating 2: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 3: 88 percent / K2CO3 / methanol / 2 h / Heating 4: pyridine / 24 h / Ambient temperature View Scheme |
artemetin
Toluene-4-sulfonic acid 2-(3,4-dimethoxy-phenyl)-3-hydroxy-6,7-dimethoxy-4-oxo-4H-chromen-5-yl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 95 percent / K2CO3 / acetone / Heating 2: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aqueous KOH-solution; pyridine; aqueous potassium peroxo disulfate solution / Erwaermen des Reaktionsgemisches mit wss. Salzsaeure und Natriumsulfit 2: acetone; potassium carbonate View Scheme |
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