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
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryBig ordering quality guaranteed Quercetin 117-39-5 manufactory Company Info Hangzhou Dingyan Chem Co., LTD. is located in the beautiful tourist city of hangzhou, is a comprehensive chemical enterprice which doing import and export busin
Cas:117-39-5
Min.Order:1 Gram
Negotiable
Type:Manufacturers
inquiryProduct Name:Quercetin Specification: 98% HPLC Appearance: Yellow Green powder Quercetin is a flavonol compound with a variety of biological activities. Delivery Time: Around 1-3 workdays after your payment. Package:
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $130.0
Type:Trading Company
inquiryAbout us We are a Professionally Managed Biotech Company exclusively into the manufacturing, Marketing and Exporting of Plant Extracts and Health Care Products.There are 15 experts in our research team. We insist in innovation and pr
1.high purity 2.consistent quality 3.competitive price 4.fast shipping Binbo Biological Products Co. Ltd., is a professional high-tech enterprise which engaged in Biological products and raw materials. Binbo is engaged in R&D with perfect eq
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $10.0 / 100.0
Type:Lab/Research institutions
inquiry1. 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:117-39-5
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryCartoon Ingredients Co.,Ltd.is located in NanJing, the capital of Jiangsu Province.with Convenient traffic As a manufacturer, the company mainly engaged in providing Food ingredients, Herbal extracts, Vitamins, APIs and Fine chemicals &a
Product name: Onion Extract Latin name: Allium cepa L. Specification:Ratio Extract 10:1 20:1 and more, 1%~20% Quercetin Appearance: Yellow brown powder Grade: Pharmaceutical and food Extraction type: Solvent extraction
Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:117-39-5
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
Cas:117-39-5
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Manufacturers
inquiryWe are: Focus on the research, production and sale of Plant and Animal extract, Medical intermediate, complete coverage six industries. Product grade: Medicine, Health care product, Cosmetics, Food,Feed, Biopesticide. Hot selling market: Europe,
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $59.0 / 65.0
Type:Manufacturers
inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
Our Advantages: 1. Free samples and unconditional hypothetical responses. 2.100% natural product, without any synthetic ingredients. 3. Direct sales from manufacturers, providing OEM and R&D services. 4. Complete certificates. 5. China's lead
Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryZorui combines R&D, production and sales into its operations, While continuously providing high-quality raw materials, we also provide and optimize technical solutions for customers to achieve mutual benefit. We adhere to the "quality, integ
Cas:117-39-5
Min.Order:1 Kilogram
Negotiable
Type:Other
inquiryName:Quercetin Name:Quercetin CAS no:117-39-5 Grade:Medical chemical industry, food industry, skin care Molecular formula: C15H10O7 Molecular weight: 302 Product Quality 12 years of chemical raw materials Mature operation of the indu
Cas:117-39-5
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryProduct Name: Quercetin Synonyms: 3,3',4',5,7-Pentahydroxyflavone 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one;2-(3,4-DIHYDROXYPHENYL)-3,5,7-TRIHYDROXY-4H-1-BENZOPYRAN-4-ONE;3,3',4',5,6-PENTA-HYDROXY-FLAVON
Cas:117-39-5
Min.Order:1 Gram
FOB Price: $8900.0
Type:Lab/Research institutions
inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $3.0 / 10.0
Type:Trading Company
inquiryProduct Quick Information : Product Name Quercetin Powder Latin Name Sophora japonica L. Part Used Flower Appearance Light Yellow Fine Powder Active Ingredient Quercetin Specificat
Cas:117-39-5
Min.Order:100 Gram
FOB Price: $1.2
Type:Trading Company
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:117-39-5
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:117-39-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryName: Quercetin Synonyms: 3,3',4',5,7-pentahydroxyflavone CAS:117-39-5 MF: C15H10O6 Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:APIs Transportation:By sea or by air Port
Appearance:Yellow fine powder Storage:Room temperature Package:25kg/drum Application:Expectorant Transportation:Express/Sea/Air Port:Any port in China
Cas:117-39-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta
Cas:117-39-5
Min.Order:10 Gram
Negotiable
Type:Other
inquiryHanways chempharm is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The marketing department is located in Wuhan. We have two GMP facilities in Hubei Pr
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $200.0 / 400.0
Type:Trading Company
inquiry1.In No Less five years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem (China) Co.,Ltd is Sp
Cas:117-39-5
Min.Order:1 Kilogram
FOB Price: $10.0
Type:Lab/Research institutions
inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
Cas:117-39-5
Min.Order:10 Gram
FOB Price: $1.32
Type:Trading Company
inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present
Quercetin CAS: 117-39-5 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, s
Cas:117-39-5
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
Conditions | Yield |
---|---|
With hydrogenchloride; methanol for 3h; Heating; | 96% |
With water at 100℃; Kinetics; Ionic liquid; | 90% |
With sulfuric acid; water at 20℃; for 0.166667h; | 89% |
hydrogenchloride
quercetin triphenylantimony complex
A
quercetol
B
triphenylantimony dichloride
Conditions | Yield |
---|---|
heating (3 h, water bath); soln. pouring into Petri dish, solid extraction by benzene; | A 75% B 88% |
6,8-dibromoquercetin
quercetol
Conditions | Yield |
---|---|
With sodium sulfite In water at 60℃; for 18h; Green chemistry; | 87% |
Conditions | Yield |
---|---|
With boron tribromide In dichloromethane for 6h; Heating; | 83% |
With trimethylsilyl iodide In methanol at 35℃; for 96h; Inert atmosphere; |
Conditions | Yield |
---|---|
With sulfuric acid at 100℃; for 1h; | A n/a B 68% |
With grape snail enzymes | |
With rhamnodiastase |
Conditions | Yield |
---|---|
With sulfuric acid at 100℃; for 2h; | A n/a B n/a C 68% |
With sulfuric acid at 100℃; for 2h; | A n/a B n/a C 47% |
quercetin 7-O-β-D-glucopyranoside
quercetol
Conditions | Yield |
---|---|
Acid hydrolysis; | 68% |
With sulfuric acid for 1h; Heating; |
quercetin 7-O-β-D-glucopyranoside
A
D-glucose
B
quercetol
Conditions | Yield |
---|---|
With water Acidic conditions; | A n/a B 65% |
With water Acidic conditions; |
Conditions | Yield |
---|---|
With sulfuric acid | A n/a B 64.3% |
Product distribution; object of study - products of acid hydrolysis; | |
With 2M HCl In hydrogenchloride at 90℃; for 1h; Product distribution; other reagent; |
Conditions | Yield |
---|---|
With water Acidic conditions; | A n/a B 64% |
Acidic conditions; | |
Acidic aq. solution; |
guaijaverin
A
L-(+)-arabinose
B
quercetol
Conditions | Yield |
---|---|
With sulfuric acid for 3h; | A n/a B 63.5% |
Conditions | Yield |
---|---|
Acidic conditions; | 63.3% |
With oxonium | |
With hydrogenchloride; ethanol for 4h; Heating; |
Conditions | Yield |
---|---|
Acidic conditions; | 63.3% |
Acid hydrolysis; | |
With hydrogenchloride In water for 0.5h; Reflux; |
rutin
A
6-O-α-L-rhamnopyranosyl-β-D-glucopyranose
B
quercetol
Conditions | Yield |
---|---|
With α-L-rhamnosyl-β-D-glucosidase from Aspergillus niger K2 in Pichia pastoris In aq. phosphate buffer; dimethyl sulfoxide at 35 - 100℃; for 24h; pH=5; Enzymatic reaction; | A 63% B n/a |
With rhamnodiastase Reactivity; Enzymatic reaction; | |
With rutinosidase In water Enzymatic reaction; |
Conditions | Yield |
---|---|
With α-L-rhamnosyl-β-D-glucosidase from Aspergillus niger In dimethyl sulfoxide at 35℃; for 8h; pH=5; Enzymatic reaction; | A 60% B n/a |
3,3',4',5,7-pentahydroxy flavanone
quercetol
Conditions | Yield |
---|---|
With potassium pyrosulfite In ethanol at 100℃; | 50% |
With pyridine; air for 20h; Heating; |
Conditions | Yield |
---|---|
With sulfuric acid; water | A n/a B n/a C 47% |
With sulfuric acid | |
With hydrogenchloride; water In methanol at 100℃; for 2h; |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene at 90℃; for 72h; | 28% |
Conditions | Yield |
---|---|
Stage #1: p-hydroxyphenethyl alcohol; rutin In methanol at 40℃; for 30h; Stage #2: With water In methanol for 0.166667h; Reflux; regioselective reaction; | A n/a B n/a C 24% |
Conditions | Yield |
---|---|
With water; hydrogen iodide; acetic anhydride at 150℃; |
Conditions | Yield |
---|---|
With water; hydrogen iodide at 150℃; |
2-benzo[1,3]dioxol-5-yl-3-hydroxy-5,7-dimethoxy-chromen-4-one
quercetol
Conditions | Yield |
---|---|
With aluminium trichloride; chlorobenzene at 130℃; Erwaermen des Reaktionsgemisches mit wss. HCl; |
Conditions | Yield |
---|---|
With hydrogenchloride for 2h; Heating; |
Conditions | Yield |
---|---|
Product distribution; acid hydrolysis; |
quercitrin
A
D-rhamnose
B
quercetol
Conditions | Yield |
---|---|
hesperidinase |
Conditions | Yield |
---|---|
With hydrogenchloride | |
With sulfuric acid |
quercetin-3-arabinoside
A
L-(+)-arabinose
B
quercetol
Conditions | Yield |
---|---|
With hydrogenchloride boiling water bath; |
manghaslin
A
D-Glucose
B
L-rhamnose
C
quercetol
Conditions | Yield |
---|---|
With sulfuric acid for 3h; Product distribution; Heating; hydrolysis for structure determination;sugar products were identified as their trimethylsilyl derivatives by GC-MS; |
3,3',4',5,7-pentahydroxyflavone 3-O-arabogluocopyranoside
A
D-arabinofuranose
B
quercetol
Conditions | Yield |
---|---|
With hydrogenchloride for 0.25h; |
quercetol
acetic anhydride
3,5,7-triacetoxy-2-(3,4-diacetoxy-phenyl)-chromen-4-one
Conditions | Yield |
---|---|
With pyridine at 130 - 140℃; | 100% |
With pyridine at 140 - 145℃; for 4h; | 97.5% |
With pyridine at 70℃; for 6h; | 95% |
quercetol
Conditions | Yield |
---|---|
With hydrogenchloride; selenium(IV) oxide In ethanol; water at 60℃; for 12h; Inert atmosphere; | 99.2% |
Conditions | Yield |
---|---|
With magnesium In neat (no solvent) at 25℃; for 3.5h; Temperature; | 98% |
Conditions | Yield |
---|---|
With 1% disodium hydrogen phosphate-sodium citrate; 35-40% glucosyltransferase at 40 - 45℃; Enzymatic reaction; | 97.2% |
quercetol
benzoyl chloride
2-(3,4-bis(benzoyloxy)phenyl)-4-oxo-4H-chromene-3,5,7-triyl tribenzoate
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; for 3h; | 97% |
With pyridine at 22 - 24℃; for 4h; | 92% |
With pyridine at 60℃; | 56% |
With sodium hydroxide |
quercetol
2-Methylpropionic anhydride
2-(3,4-bis(isobutyryloxy)phenyl)-4-oxo-4H-chromene-3,5,7-triyl tris(2-methylpropanoate)
Conditions | Yield |
---|---|
With pyridine for 2h; Reflux; | 97% |
In pyridine Ambient temperature; | 0.43 g |
quercetol
tert-butyldimethylsilyl chloride
3,3',4',5,7-penta-O-tert-butyldimethylsilylquercetin
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 20℃; for 6h; silylation; | 97% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 20℃; for 5h; |
quercetol
benzyl bromide
2-[3,4-bis(phenylmethoxy)phenyl]-3,5,7-tris(phenylmethoxy)chromen-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 72h; | 95% |
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 4h; Etherification; | 89% |
Stage #1: quercetol; benzyl bromide With potassium carbonate In N,N-dimethyl-formamide at 20 - 70℃; for 15h; Stage #2: With water In N,N-dimethyl-formamide at 20℃; for 1h; | 80% |
quercetol
benzyl chloride
2-[3,4-bis(phenylmethoxy)phenyl]-3,5,7-tris(phenylmethoxy)chromen-4-one
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; potassium carbonate at 20℃; for 35h; Inert atmosphere; | 95% |
With tetrabutylammomium bromide; potassium carbonate In 1-methyl-pyrrolidin-2-one; acetone at 85 - 90℃; for 24h; | 93% |
With potassium carbonate; Aethyl-dipropyl-benzyl-ammonium In N,N,N,N,N,N-hexamethylphosphoric triamide for 35h; Inert atmosphere; | 90% |
With tetrabutylammomium bromide; potassium carbonate In 1-methyl-pyrrolidin-2-one; acetone at 75℃; for 24h; Inert atmosphere; | 87% |
With potassium carbonate; N,N-dimethyl-formamide at 20℃; for 12h; | 15% |
quercetol
sodium acetate
acetic anhydride
3,5,7-triacetoxy-2-(3,4-diacetoxy-phenyl)-chromen-4-one
Conditions | Yield |
---|---|
Reflux; Inert atmosphere; | 95% |
ZnCl2(1,10-phenanthroline)
quercetol
Conditions | Yield |
---|---|
With triethylamine In ethanol; water at 20℃; for 0.166667h; Inert atmosphere; | 94% |
quercetol
2-(3',4'-dihydroxybenzoyloxy)-4,6-dihydroxybenzoic acid
Conditions | Yield |
---|---|
With oxygen; tetraethylammonium tosylate In N,N-dimethyl-formamide Mechanism; electrolysis at -1.0 V, Au electrode; | 93% |
With MES buffer; quercetinase EC 1.31.11.24 In dimethyl sulfoxide for 1h; pH=6; | |
With recombinant quercetinase from Aspergillus japonicus; oxygen In aq. buffer at 40 - 60℃; for 360h; pH=5; Reagent/catalyst; pH-value; Enzymatic reaction; |
(2,2'-bipyridyl)dichlorozinc(II)
quercetol
Conditions | Yield |
---|---|
With triethylamine In ethanol; water at 20℃; for 0.166667h; Inert atmosphere; | 92% |
dichloro(1,10-phenanthroline) copper(II)
quercetol
Conditions | Yield |
---|---|
With triethylamine In ethanol; water at 20℃; for 0.166667h; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
With α-glucosidase from sulfolobus solfataricus In dimethyl sulfoxide at 45℃; for 2h; pH=9; Enzymatic reaction; | 92% |
quercetol
2-(3,4-dihydroxy-5-sulfophenyl)-3,5,7-trihydroxy-4H-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid at 80℃; for 2h; | 90% |
quercetol
A
C15H7O16S3(3-)*3K(1+)
B
quercetin-3,7,3',4'-tetrasulphate potassium
Conditions | Yield |
---|---|
With potassium acetate; tetra(n-butyl)ammonium hydrogensulfate; dicyclohexyl-carbodiimide In pyridine at 25℃; for 288h; | A 89% B n/a |
Dichlorodiphenylmethane
quercetol
2-(2,2-diphenylbenzo[1,3]dioxol-5-yl)-3,5,7-trihydroxychromen-4-one
Conditions | Yield |
---|---|
In diphenylether at 175℃; for 2h; | 89% |
In diphenylether at 175℃; for 2h; | 89% |
In diphenylether at 175℃; for 0.5h; Inert atmosphere; regioselective reaction; | 86% |
ethanol
quercetol
2-(3,4-Dihydroxy-phenyl)-2-ethoxy-3,3,5,7-tetrahydroxy-chroman-4-one
Conditions | Yield |
---|---|
With oxygen; copper dichloride at 20℃; for 10h; | 88% |
With phosphate buffer at 80℃; for 7h; Irradiation; | 3 mg |
With phosphate buffer at 30℃; for 4h; Irradiation; enzyme solution from red clover (leaves and stems); | 2 mg |
quercetol
ethyl iodide
2-(3,4-diethoxyphenyl)-3,5,7-triethoxy-4H-chromen-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 45℃; for 12h; Inert atmosphere; | 87% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 15h; Inert atmosphere; | 82% |
With tetraethylammonium fluoride In N,N-dimethyl-formamide for 20h; | 70% |
With potassium hydroxide |
Conditions | Yield |
---|---|
With pyridine for 2h; Reflux; | 87% |
With pyridine for 16h; Ambient temperature; | 67% |
quercetol
Conditions | Yield |
---|---|
With bromine In 1,4-dioxane at 20 - 22℃; for 2h; | 86.1% |
Stage #1: quercetol With N-Bromosuccinimide; sodium hydroxide In methanol; water at 20℃; for 0.166667h; Inert atmosphere; Green chemistry; Stage #2: With hydrogenchloride; sodium dithionite In methanol; water at 20℃; Inert atmosphere; Green chemistry; | 400 mg |
Multi-step reaction with 3 steps 1: potassium carbonate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 2: N-Bromosuccinimide / dichloromethane / -40 °C / Inert atmosphere 3: boron trichloride / dichloromethane; hexane / 2.5 h / -20 °C / Inert atmosphere; Reflux View Scheme | |
With bromine In 1,4-dioxane at 24.84℃; |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 35℃; for 12h; Inert atmosphere; | 86% |
With sodium hydride In N,N-dimethyl-formamide at 20℃; for 12h; | 84% |
With potassium carbonate In acetone for 24h; Reflux; | 82% |
quercetol
Conditions | Yield |
---|---|
With boron trifluoride; [D3]phosphoric acid In water-d2 at 55℃; for 48h; deuteration; | 86% |
Stage #1: quercetol With [D]-sodium hydroxide; platinum on activated charcoal; water-d2 at 130℃; for 9h; Inert atmosphere; Stage #2: With formic acid at 130℃; for 1h; Inert atmosphere; | 63% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 60℃; Inert atmosphere; | 86% |
Conditions | Yield |
---|---|
With potassium hydroxide In water; acetone | 86% |
Conditions | Yield |
---|---|
In ethanol at 50℃; | 85.5% |
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