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ShangHai Soyoung Biotechnology Inc

Shanghai SOYOUNG onsite assessment conducted by Bureau Veritas commissioned at June 2018. Assessed Supplier of Shanghai SOYOUNG is a faithful and professional supplier of health raw materials in pharmacy,food, cosmetic and other fields for many yea

Luteolin Powder Sophora Japonica Extract 98% Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $310.0

Type:Lab/Research institutions

inquiry

Guang'an Hongyi Bio-technology Co., Ltd

strengths: stable supply superior quality advanced technology sufficient stock legal /safety production competitive price Appearance:Yellow powder Storage:Store in cool and dry place Package:25kg/drum, double-layer plastic ba

Factory price Luteolin 98% CAS 491-70-3

Cas:491-70-3

Min.Order:25 Kilogram

FOB Price: $265.65 / 270.32

Type:Other

inquiry

Binbo Biological Co., Ltd

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

100% Natural Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

Our advantage 1. Free sample and unconditional assume response 2. 100% natural product, without any synthetize ingredient 3. Manufacturer direct supply, provide OEM, R&D service 4. ISO/HACCP/KOSHER/GMP/FDA 5. Leading plant extract man

Luteolin

Cas:491-70-3

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Hubei Lidu New Material Technology Co., Ltd

Hubei Lidu New Materials Technology Co. , Ltd. is located in No. 12,3C Industrial Park, Zhongxiang Economic Development Zone, Hubei Province. The company is committed to fine chemical raw materials, pharmaceutical intermediates and other production,

Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

shanghai Tauto Biotech Co., Ltd

The 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 me

E-0070 Luteolin

Cas:491-70-3

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Greenutra Resource Inc

Arachis Hypogaea Extract Luteolin 98% Product Name: Peanut hull extract, Peanut shell extract, Arachis hypogaea extract, Luteolin Latin Name: Arachis hypogaea L., Ajuga decumbens Thunb Molecular Formula: C15H10O6 Molec

Mignonette extract

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $14.0

Type:Trading Company

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

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

Luteolin Manufacturer/High quality/Best price/In stock

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance Yellow powder Complies Assay 98%min 98.18%

High quality Luteolin with best price cas:491-70-3

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $250.0 / 350.0

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

About 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

Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $800.0 / 1000.0

Type:Other

inquiry

Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co., LTD is a professional research, development and production 2-phenylacetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environ

High purity Luteolin

Cas:491-70-3

Min.Order:100 Gram

FOB Price: $2.0

Type:Manufacturers

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Manufacturer supply Luteolin CAS 491-70-3 with attractive price Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed addit

Manufacturer supply Luteolin CAS 491-70-3 with attractive price

Cas:491-70-3

Min.Order:10 Kilogram

FOB Price: $10.0

Type:Trading Company

inquiry

Xi'an Quanao Biotech Co., Ltd.

Scutellaria Barbata Powder Barbed Skullcap Extract Xi'an Quanao Biotech Co., Ltd. is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal ext

Scutellaria Barbata Powder Barbed Skullcap Extract

Cas:491-70-3

Min.Order:100 Kilogram

FOB Price: $16.0 / 23.0

Type:Manufacturers

inquiry

Ality Chemical Corporation

The 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

Factory Supply Luteolin

Cas:491-70-3

Min.Order:1

Negotiable

Type:Other

inquiry

Baoding Faithful Industry Co., Ltd.

Sales: 1.24hours to reply your E-mail 2.Market information trend share with customers Suggestion for purchase decision Reputation: 1.Implementing contract terms strictly 2.Timely solve any discrepancy or goods claims Take our responsibility for loss

Luteolin powder

Cas:491-70-3

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Xi'an Xszo Chem Co., Ltd.

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

High Content Natural Extract Luteolin HACCP manufacturer

Cas:491-70-3

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Xi`an Eastling Biotech Co., Ltd.

F Luteolin CAS: 491-70-3 Molecular Formula: C15H10O6 Home Product Category Drug substance Respiratory system medication 491-70-3 491-70-3 - Names and Identifiers Name Luteolin Synonyms LUTEOLIN Luteolin LUTE

Top Quality Natural Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $35.0 / 49.0

Type:Lab/Research institutions

inquiry

Shanghai Seasonsgreen Chemical Co.,Ltd

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

lower price High quality Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

Luteolin(Peanut Shell Extract)

Cas:491-70-3

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Luteolin

Cas:491-70-3

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name:Luteolin English Name:Luteolin CSA:491-70-3 Molecular formula: C15H10O6 Molecular weight: 286.24 Packaging Specification: 25kg/drum high purity 99%min stock Hubei DiBo Chemical Co., Ltd. was founded in 2009, is a high-tech industrial

Luteolin/CAS:491-70-3/Manufacturer provides straightly

Cas:491-70-3

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

GIHI CHEMICALS exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, GIHI CHEMICALS is your best choice. pls contact with us freely for getting detailed prod

Luteolin

Cas:491-70-3

Min.Order:1 Gram

FOB Price: $6.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Luteolin Basic information Product Name: Luteolin Synonyms: 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4h-1-benzopyran-4-on;3’,4’,5,7-tetrahydroxy-flavon;c.i.75590;c.i.naturalyell

Luteolin 491-70-3

Cas:491-70-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With 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

Luteolin

Cas:491-70-3

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

Wholesale price CAS 491-70-3 with best price

Cas:491-70-3

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Hot Sell Factory Supply Raw Material CAS 491-70-3 ,E-0070 Luteolin

Cas:491-70-3

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name: Peanut Skin Extract Luteolin Botanical Source: Arachis hypogaea Linn. Specs:98%,other specs 80%, 90%, 95% Appearance: Yellow needle crystalline Part Used: Peanut Skin Cas No.: 491-70-3 Molecular Formula: C15H10O6 Molecul

Luteolin CAS: 491-70-3

Cas:491-70-3

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : 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&amp

Luteolin/ LIDE PHARMA- Factory supply / Best price

Cas:491-70-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Light yellow fine powder Storage:Store in sealed containers

Shanghai Upbio Tech Co.,Ltd

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

Luteolin 491-70-3

Cas:491-70-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
520-36-5

5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With C9H8IO4Pol In dimethyl sulfoxide at 25℃; for 2h;95%
With cytochromes P450 in human liver microsomes Kinetics; Enzymatic reaction;
2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one
855-97-0

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With pyridine hydrochloride at 190℃; for 6h; Inert atmosphere;89%
With pyridine hydrochloride at 180℃; for 6.5h; Inert atmosphere;88%
Stage #1: 2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one With aluminum (III) chloride In toluene at 80 - 140℃;
Stage #2: With hydrogenchloride In water; toluene at 0℃; Reagent/catalyst; Solvent; Temperature; Time;
70.2%
2-(3,4-bis(benzyloxy)phenyl)-5,7-dihydroxy-4H-chromen-4-one
58124-13-3

2-(3,4-bis(benzyloxy)phenyl)-5,7-dihydroxy-4H-chromen-4-one

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In N,N-dimethyl-formamide Ambient temperature;80%
1-[3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-3-(2,4,6-trihydroxy-phenyl)-propane-1,3-dione

1-[3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-3-(2,4,6-trihydroxy-phenyl)-propane-1,3-dione

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With sulfuric acid In acetic acid at 95 - 100℃; for 1h;78%
2',3,4,4',6'-pentahydroxychalcone
14917-41-0

2',3,4,4',6'-pentahydroxychalcone

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With oxygen at 20℃; under 760.051 Torr; for 1h; Reagent/catalyst;72%
luteolin 7-O-glucoside
5373-11-5, 68321-11-9

luteolin 7-O-glucoside

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With sulfuric acid for 4h;68.2%
With acid
With sulfuric acid; water for 2h; Heating;70 mg
luteolin 7-O-glucoside
5373-11-5, 68321-11-9

luteolin 7-O-glucoside

A

D-glucose
50-99-7

D-glucose

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With water Acidic conditions;A n/a
B 66%
Acid hydrolysis;
Acidic aq. solution;
Acidic conditions;
4,6-bis(methoxymethyl)-2-(3,4-diacetoxybenzoyloxy)acetophenone

4,6-bis(methoxymethyl)-2-(3,4-diacetoxybenzoyloxy)acetophenone

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
Stage #1: 4,6-bis(methoxymethyl)-2-(3,4-diacetoxybenzoyloxy)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;
55%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With sulfuric acid; water for 2h; Heating;50%
5,7-dihydroxy-2-phenyl-chromen-4-one
480-40-0

5,7-dihydroxy-2-phenyl-chromen-4-one

A

5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
520-36-5

5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C

luteolin 3'-monosulphate

luteolin 3'-monosulphate

Conditions
ConditionsYield
With Mucore ramannianus (ATCC 9628) In N,N-dimethyl-formamide for 336h; Microbiological reaction;A 3%
B 10.2%
C 10.2%
6-bromo-2-(3,4-dimethoxy-phenyl)-5,7-dimethoxy-chromen-4-one

6-bromo-2-(3,4-dimethoxy-phenyl)-5,7-dimethoxy-chromen-4-one

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With water; hydrogen iodide; acetic anhydride
diosmetin
520-34-3

diosmetin

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With pyridine hydrochloride at 170℃; for 2h;
luteolin 7-O-<β-D-glucuronosyl(1-2)β-D-glucuronide>-4'-O-β-D-glucuronide

luteolin 7-O-<β-D-glucuronosyl(1-2)β-D-glucuronide>-4'-O-β-D-glucuronide

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C

luteolin 7-O-<β-D-glucuronosyl(1<*>2)β-D-glucuronide>

luteolin 7-O-<β-D-glucuronosyl(1<*>2)β-D-glucuronide>

Conditions
ConditionsYield
With formic acid In water at 100℃; for 3h; Product distribution; also enzymatic hydrolysis;
luteolin 7-O-glucoside
5373-11-5, 68321-11-9

luteolin 7-O-glucoside

A

D-Glucose
2280-44-6

D-Glucose

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogenchloride
With sulfuric acid for 6h;
luteolin 7-O-glucoside
5373-11-5, 68321-11-9

luteolin 7-O-glucoside

A

β-D-glucose
492-61-5

β-D-glucose

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
Product distribution; Acid hydrolysis;
luteolin-5-O-β-D-glucopyranoside
20344-46-1

luteolin-5-O-β-D-glucopyranoside

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With malic acid at 60℃; other object of study: half-lives; other reagent : acetic acid, oxalic acid, HCl; other temperature;
7-O-lactoyl-luteolin
126394-95-4

7-O-lactoyl-luteolin

A

LACTIC ACID
849585-22-4

LACTIC ACID

B

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogenchloride In methanol at 100℃; for 7h; Product distribution;
luteolin 7-O-<2-O-β-glucopyranosyl-lactate>

luteolin 7-O-<2-O-β-glucopyranosyl-lactate>

A

LACTIC ACID
849585-22-4

LACTIC ACID

B

D-Glucose
2280-44-6

D-Glucose

C

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogenchloride at 100℃; for 7h; Product distribution; other time; reaction in the presence of catalyst;
Conditions
ConditionsYield
With hydrogenchloride at 100℃; for 7h; Product distribution; other time; reaction in the presence of catalyst;
(3',4'-dibenzyloxy-5,7-dimethoxymethyl)flavone
169132-97-2

(3',4'-dibenzyloxy-5,7-dimethoxymethyl)flavone

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogenchloride In methanol
Multi-step reaction with 3 steps
1: 75 percent / HCl / ethanol; hexane / 1 h / Ambient temperature
2: 18percent HCl / ethanol / 0.5 h / Heating
3: 80 percent / H2 / Pd/C / dimethylformamide / Ambient temperature
View Scheme
3-<3,4-di(tert-butyldimethylsilyloxy)phenyl>-5-(2,4,6-trihydroxyphenyl)isoxazole

3-<3,4-di(tert-butyldimethylsilyloxy)phenyl>-5-(2,4,6-trihydroxyphenyl)isoxazole

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; boric acid; acetic acid; nickel 1.) dioxane-water, 2.) 2 h, reflux; Yield given. Multistep reaction;
2.4.6-trimethoxy-ω-<3.4-dimethoxy-benzoyl>-acetophenone

2.4.6-trimethoxy-ω-<3.4-dimethoxy-benzoyl>-acetophenone

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogen iodide
2.4.6-trimethoxy-ω-<3.4-methylenedioxy-benzoyl>-acetophenone

2.4.6-trimethoxy-ω-<3.4-methylenedioxy-benzoyl>-acetophenone

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Conditions
ConditionsYield
With hydrogen iodide
diosmetin
520-34-3

diosmetin

hydrogen iodide
10034-85-2

hydrogen iodide

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

2-(3,4-dimethoxy-phenyl)-7-hydroxy-5-methoxy-chromen-4-one
10544-05-5

2-(3,4-dimethoxy-phenyl)-7-hydroxy-5-methoxy-chromen-4-one

hydrogen iodide
10034-85-2

hydrogen iodide

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

3',4'-methylenedioxy-5,7-dimethoxyflavone
89029-12-9

3',4'-methylenedioxy-5,7-dimethoxyflavone

hydrogen iodide
10034-85-2

hydrogen iodide

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

6,8-dibromo-2-(3,4-dimethoxy-phenyl)-5,7-dimethoxy-chromen-4-one

6,8-dibromo-2-(3,4-dimethoxy-phenyl)-5,7-dimethoxy-chromen-4-one

hydrogen iodide
10034-85-2

hydrogen iodide

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

5,7-diethoxy-2-(3,4-diethoxy-phenyl)-chromen-4-one
6169-14-8

5,7-diethoxy-2-(3,4-diethoxy-phenyl)-chromen-4-one

hydrogen iodide
10034-85-2

hydrogen iodide

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

hydrogen iodide
10034-85-2

hydrogen iodide

chrysoeriol tri-O-acetate
3162-04-7

chrysoeriol tri-O-acetate

acetic acid
64-19-7

acetic acid

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

chlorosulfuric acid 2,2,2-trichloroethyl ester
764-09-0

chlorosulfuric acid 2,2,2-trichloroethyl ester

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C23H14Cl12O18S4

C23H14Cl12O18S4

Conditions
ConditionsYield
With dmap; triethylamine In tetrahydrofuran at 20℃;95%
furan-2-ylmethanamine
617-89-0

furan-2-ylmethanamine

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C20H13NO7

C20H13NO7

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water pH=9.2; Reflux;95%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

acetic anhydride
108-24-7

acetic anhydride

luteolin tetraacetate
1061-93-4

luteolin tetraacetate

Conditions
ConditionsYield
With pyridine Reflux;92%
With sodium acetate
In pyridine Ambient temperature;49 mg
TFE*OTf
1269657-45-5

TFE*OTf

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C23H18Cl12O18S4
1313434-36-4

C23H18Cl12O18S4

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 20℃; for 0.366667h;92%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

2-(2-Aminoethoxy)ethanol
929-06-6

2-(2-Aminoethoxy)ethanol

C19H17NO8

C19H17NO8

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water at 65℃; pH=9.2;92%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

diethyl chlorophosphate
814-49-3

diethyl chlorophosphate

C31H46O18P4
1266147-86-7

C31H46O18P4

Conditions
ConditionsYield
With dmap; triethylamine In tetrahydrofuran at 20℃; for 24.5h; Inert atmosphere; Cooling with ice;91%
With dmap; triethylamine In tetrahydrofuran at 70℃; for 3.5h; Cooling with ice; Inert atmosphere;
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

dimethyl sulfate
77-78-1

dimethyl sulfate

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one
855-97-0

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one

Conditions
ConditionsYield
With potassium carbonate In acetone for 10h; Reflux;90.7%
With potassium carbonate; acetone
2,2,2-trichloroethoxysulfuryl 2-methyl-3-methylimidazolium triflate
1185733-70-3

2,2,2-trichloroethoxysulfuryl 2-methyl-3-methylimidazolium triflate

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C23H18Cl12O18S4
1313434-36-4

C23H18Cl12O18S4

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 20℃; for 0.366667h;90%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

(1S,2R,4aS,6aR,6bR,8aR,12aR,12bR,14bS)-6a-Hydroxymethyl-1,2,6b,9,9,12a-hexamethyl-10-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid methyl ester

(1S,2R,4aS,6aR,6bR,8aR,12aR,12bR,14bS)-6a-Hydroxymethyl-1,2,6b,9,9,12a-hexamethyl-10-oxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid methyl ester

Conditions
ConditionsYield
In methanol for 0.5h; Ambient temperature;88%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

L-proline
147-85-3

L-proline

luteolin L-proline cocrystals (1:1)

luteolin L-proline cocrystals (1:1)

Conditions
ConditionsYield
In ethanol; acetonitrile at 50℃;86.3%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

Hexanoyl chloride
142-61-0

Hexanoyl chloride

5,7,3',4'-tetra-O-hexanoyl-luteolin

5,7,3',4'-tetra-O-hexanoyl-luteolin

Conditions
ConditionsYield
With dmap; triethylamine In N,N-dimethyl-formamide at 20℃; for 4.5h; Cooling with ice;85%
With dmap; triethylamine In N,N-dimethyl-formamide
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

methyl iodide
74-88-4

methyl iodide

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one
855-97-0

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4H-chromen-4-one

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide at 20℃; for 12h;84%
Dichlorodiphenylmethane
2051-90-3

Dichlorodiphenylmethane

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

2-(2,2-diphenyl-1,3-benzodioxol-5-yl)-5,7-dihydroxy-4H-1-benzopyran-4-one
1201808-21-0

2-(2,2-diphenyl-1,3-benzodioxol-5-yl)-5,7-dihydroxy-4H-1-benzopyran-4-one

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In 1,4-dioxane; 1-methyl-pyrrolidin-2-one at 180℃; for 1h; Inert atmosphere; Sealed tube; Microwave irradiation;83%
In diphenylether at 165℃; for 2.5h;70%
In diphenylether at 165℃; for 2.5h;70%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

A

C15H9O9S(1-)*K(1+)
120537-30-6

C15H9O9S(1-)*K(1+)

B

C15H8O12S2(2-)*2K(1+)
116097-10-0

C15H8O12S2(2-)*2K(1+)

Conditions
ConditionsYield
With potassium acetate; tetra(n-butyl)ammonium hydrogensulfate; dicyclohexyl-carbodiimide In pyridine at 4℃; for 72h; Yields of byproduct given;A n/a
B 78%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

5,7-dihydroxy-2-(3,4-dihydroxyphenyl-2,5,6-D3)-4H-1-benzopyran-4-one-3,6,8-D3

5,7-dihydroxy-2-(3,4-dihydroxyphenyl-2,5,6-D3)-4H-1-benzopyran-4-one-3,6,8-D3

Conditions
ConditionsYield
With boron trifluoride; [D3]phosphoric acid In water-d2 at 55℃; for 48h; deuteration;78%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

ethylene dibromide
106-93-4

ethylene dibromide

2-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-5,7-dihydroxy-4H-chromen-4-one
445408-53-7

2-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-5,7-dihydroxy-4H-chromen-4-one

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 0.5h;78%
With potassium carbonate In dimethyl sulfoxide at 70℃; for 1h;32.4%
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 0.5h;28.1%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

ethanolamine
141-43-5

ethanolamine

C17H13NO7

C17H13NO7

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water at 65℃; pH=9.2;78%
propylamine
107-10-8

propylamine

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C18H15NO6

C18H15NO6

Conditions
ConditionsYield
With sodium hydroxide In ethanol at 50℃; pH=9.2;76%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

dimethyl sulfate
77-78-1

dimethyl sulfate

pilloin
32174-62-2

pilloin

Conditions
ConditionsYield
With potassium carbonate In acetone for 1h; Reflux;73%
With potassium carbonate In N,N-dimethyl-formamide at 60 - 65℃; for 3h;20.9%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

ethylamine
75-04-7

ethylamine

C17H13NO6

C17H13NO6

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water at 50℃; pH=9.2-9.3;72%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

benzyl bromide
100-39-0

benzyl bromide

7-(benzyloxy)-2-(3',4'-bis(benzyloxy)phenyl)-5-hydroxy-4H-chromen-4-one
1201807-92-2

7-(benzyloxy)-2-(3',4'-bis(benzyloxy)phenyl)-5-hydroxy-4H-chromen-4-one

Conditions
ConditionsYield
Stage #1: 2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere;
Stage #2: benzyl bromide In N,N-dimethyl-formamide at 80℃; for 10h; Inert atmosphere;
71%
With potassium carbonate In N,N-dimethyl-formamide at 0 - 20℃;56%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

benzylamine
100-46-9

benzylamine

C22H15NO6

C22H15NO6

Conditions
ConditionsYield
With sodium hydroxide In ethanol at 50℃; pH=9.2; Sonication;70.1%
SEC-BUTYLAMINE
33966-50-6

SEC-BUTYLAMINE

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

C19H17NO6

C19H17NO6

Conditions
ConditionsYield
With sodium hydroxide In ethanol at 50℃; pH=9.2;68%
2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on
491-70-3

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-chromen-4-on

allyl bromide
106-95-6

allyl bromide

C27H26O6

C27H26O6

Conditions
ConditionsYield
With potassium carbonate In acetone for 10h; Reflux;67.6%
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