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Dayang Chem (Hangzhou) Co.,Ltd.

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

Cianidanol Manufacturer/High quality/Best price/In stock

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White powder Conforms Assay,HPLC 98%min

High purity Cianidanol with high quality cas:154-23-4

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $300.0 / 400.0

Type:Manufacturers

inquiry

Simagchem Corporation

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

High quality Catechine supplier in China

Cas:154-23-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co., LTD is a professional research, development and production Cyromazine、lead diacetate trihydrate /Lead acetate trihydrateC、 2-phenylacetamide 、 4-Aminophenyl-1-phenethylpiperidine 、Citric acid monohydrate 、 Citric acid/c

154-23-4 2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R,3S)-

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $2.0

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 Catechine

Cas:154-23-4

Min.Order:1

Negotiable

Type:Other

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

Natural Extract 98% Cianidanol 154-23-4 HACCP Manufacturer

Cas:154-23-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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 Cianidanol

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Leader Biochemical Group

About Product Details Cianidanol Chemical Properti

China Biggest factory Manufacturer Supply High Quality Cianidanol CAS 154-23-4

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $1.0 / 5.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

TIANFU CHEM--Cianidanol

Cas:154-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

154-23-4 Cianidanol

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $15.0 / 50.0

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

Pharmaceutical Grade CAS 154-23-4 with competitive price

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

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

Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

Cas:154-23-4

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

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

2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R,3S)- 154-23-4

Cas:154-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our 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 prese

inhibitoe, Cianidanol CAS:154-23-4

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $210.0 / 218.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Cianidanol CAS:154-23-4 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,

Cianidanol CAS:154-23-4

Cas:154-23-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

Cianidanol

Cas:154-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

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

CAS NO.:154-23-4

Cas:154-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chengdu Biopurify Phytochemicals Ltd.

Chengdu 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

Cianidanol

Cas:154-23-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

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

Cianidanol

Cas:154-23-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Nanjing Spring & Autumn Biological Engineering Co., Ltd.

Nanjing Spring & Autumn Biological Engineering Co., Ltd. Which was founded at 2008, has an R & D team composed very experienced natural products chemists. The company is a high-tech enterprise engaged in functional health care products raw ma

Cianidanol

Cas:154-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

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

Catechin

Cas:154-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

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

High quality Catechine

Cas:154-23-4

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

Cas:154-23-4

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best OfferCianidanol

Cas:154-23-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

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,

Cianidanol,(+)-Catechinhydrate

Cas:154-23-4

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

Cas:154-23-4

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Hubei CuiRan Biotechnology Co., Ltd

Hubei CuiRan Biotechnology Co., 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 Medicine)

Catechin

Cas:154-23-4

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

Hangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu

Cianidanol

Cas:154-23-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong 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

Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

Cas:154-23-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

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

Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

Cas:154-23-4

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Synthetic route

5,7,3',4'-tetra-O-benzyl-(+)-catechin
20728-73-8

5,7,3',4'-tetra-O-benzyl-(+)-catechin

catechin
154-23-4

catechin

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol92%
With 10 wt% Pd(OH)2 on carbon In methanol; water at 20℃; for 10h;90%
C50H42O6

C50H42O6

A

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol; ethyl acetate at 20 - 55℃;A 55%
B n/a
2-[(2S,3S)-3-(3'',4''-dihydroxyphenyl)-2,3-dihydroxypropyl]-1,3,5-benzenetriol
455952-06-4

2-[(2S,3S)-3-(3'',4''-dihydroxyphenyl)-2,3-dihydroxypropyl]-1,3,5-benzenetriol

catechin
154-23-4

catechin

Conditions
ConditionsYield
With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 20℃; for 1.5h; Mitsunobu reaction;50%
Hexanethiol
111-31-9

Hexanethiol

tannin

tannin

A

epicatechin-4-hexylsulphide

epicatechin-4-hexylsulphide

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
Octanethiol
111-88-6

Octanethiol

tannin

tannin

A

epicatechin-4-nonylsulphide

epicatechin-4-nonylsulphide

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
decylthiol
143-10-2

decylthiol

tannin

tannin

A

epicatechin-4-decylsulphide

epicatechin-4-decylsulphide

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
1-dodecylthiol
112-55-0

1-dodecylthiol

tannin

tannin

A

(-)-epicatechin-4β-dodecylsulfide

(-)-epicatechin-4β-dodecylsulfide

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
16-mercaptohexadecanoate
2917-26-2

16-mercaptohexadecanoate

tannin

tannin

A

epicatechin-4-hexadecylsulphide

epicatechin-4-hexadecylsulphide

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
procyanidin B3
23567-23-9

procyanidin B3

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 1h;35%
With hydrogenchloride for 0.5h; heating on a boiling water bath;
(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

A

C15H14(2)H2O5

C15H14(2)H2O5

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With deuterated sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 2h;A 25%
B 26%
With deuterated sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 6h;
(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

A

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol
155486-92-3

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 3h;A 25%
B 24%
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 3h;A 25%
B 24%
With sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 6h; Mechanism; other profisetinidin biflavanoids;A 16%
B 15%
procyanidin B1
20315-25-7

procyanidin B1

A

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 1h; Title compound not separated from byproducts;A 21%
B 20%
(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
69127-11-3

(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

A

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol
155486-92-3

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 6h;A 18%
B 17%
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 6h;A 18%
B 17%
procyanidin B3
23567-23-9

procyanidin B3

A

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene
128428-20-6

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene

B

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol
128428-22-8

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol

C

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol
128428-25-1

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol

D

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium hydrogencarbonate; sodium carbonate In water at 45℃; for 1.5h; Further byproducts given;A n/a
B n/a
C 9%
D 9%
With sodium hydrogencarbonate; sodium carbonate In water at 45℃; for 1.5h; Further byproducts given;A n/a
B n/a
C n/a
D 9%
procyanidin B3
23567-23-9

procyanidin B3

A

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene
128428-20-6

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene

B

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol
128428-22-8

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol

C

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol
128428-25-1

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol

D

(2R,3R,4S,2'S,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol
128428-28-4

(2R,3R,4S,2'S,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol

E

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium hydrogencarbonate; sodium carbonate In water at 45℃; for 1.5h;A n/a
B n/a
C n/a
D n/a
E 9%
procyanidin B3
23567-23-9

procyanidin B3

A

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene
128428-20-6

8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene

B

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol
128428-22-8

(2R,3R,4S,2'R,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,8']bichromenyl-3,5,7,3',5',7'-hexaol

C

(2R,3R,4S,2'S,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol
128428-28-4

(2R,3R,4S,2'S,3'S)-4,2'-Bis-(3,4-dihydroxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[2,6']bichromenyl-3,5,7,3',5',7'-hexaol

D

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium hydrogencarbonate; sodium carbonate In water at 45℃; for 1.5h; Further byproducts given;A n/a
B n/a
C n/a
D 9%
(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan
69176-55-2

(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan

A

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol
155486-92-3

(2R)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-propan-2-ol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 6h;A 4%
B 4%
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 6h;A 4%
B 4%
procyanidin B2
29106-49-8

procyanidin B2

A

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
phosphoric acid In water; acetonitrile at 25 - 40℃; Rate constant; acid catalysis at different pH-values;
procyanidin B1
20315-25-7

procyanidin B1

A

4β-benzylthioepicatechin
37064-35-0

4β-benzylthioepicatechin

B

4α-Benzylthioepicatechin
128837-34-3

4α-Benzylthioepicatechin

C

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol for 2h; Heating;A 108 mg
B 3 mg
C 78 mg
procyanidin B1
20315-25-7

procyanidin B1

A

(+)-epicatechin
35323-91-2

(+)-epicatechin

B

sodium epicatechin-(4β)-sulphonate

sodium epicatechin-(4β)-sulphonate

C

catechin
154-23-4

catechin

Conditions
ConditionsYield
With sodium hydrogensulfite
procyanidin B3
23567-23-9

procyanidin B3

A

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
phosphoric acid In water; acetonitrile at 40℃; Rate constant; acid-catalysed hydrolysis at pH 0.55 value;
sodium methylate
124-41-4

sodium methylate

6-[(2,4-Dinitro-phenyl)-hydrazono]-1-hydroxy-cyclohex-2-enecarboxylic acid (2R,3S)-2-(3,4-dihydroxy-phenyl)-5,7-dihydroxy-chroman-3-yl ester

6-[(2,4-Dinitro-phenyl)-hydrazono]-1-hydroxy-cyclohex-2-enecarboxylic acid (2R,3S)-2-(3,4-dihydroxy-phenyl)-5,7-dihydroxy-chroman-3-yl ester

6-[(2,4-Dinitro-phenyl)-hydrazono]-1-hydroxy-cyclohex-2-enecarboxylic acid methyl ester

6-[(2,4-Dinitro-phenyl)-hydrazono]-1-hydroxy-cyclohex-2-enecarboxylic acid methyl ester

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With methanol at 60℃; for 6h; Yield given. Yields of byproduct given;
(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

catechin
154-23-4

catechin

Conditions
ConditionsYield
With potassium carbonate In water Heating;
With anthocyanidin reductase from Vitis vinifera; β-nicotinamide adenine dinucleotide phosphate sodium salt at 30℃; for 0.5h; pH=7.5; aq. buffer; Enzymatic reaction;30 %Chromat.
procyanidin B4
29106-51-2

procyanidin B4

A

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol
490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
phosphoric acid In water; acetonitrile at 40℃; Rate constant; acid-catalysed hydrolysis at pH 0.55 value;
6-iodo-(+)-catechin
104079-72-3

6-iodo-(+)-catechin

(+)-mollisacacidin
967-27-1

(+)-mollisacacidin

A

(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
69127-11-3

(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

B

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

C

(2R,3S)-2,3-trans-6-<(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan
104113-23-7

(2R,3S)-2,3-trans-6-<(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan

D

catechin
154-23-4

catechin

Conditions
ConditionsYield
With hydrogenchloride; N-iodo-succinimide In N,N-dimethyl-formamide Yield given. Further byproducts given;A 130 mg
B 124 mg
C n/a
D 251 mg
6-iodo-(+)-catechin
104079-72-3

6-iodo-(+)-catechin

(+)-mollisacacidin
967-27-1

(+)-mollisacacidin

A

(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
69127-11-3

(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

B

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

C

(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan
69176-55-2

(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan

D

catechin
154-23-4

catechin

Conditions
ConditionsYield
With hydrogenchloride; N-iodo-succinimide In N,N-dimethyl-formamide Further byproducts given;A 130 mg
B 124 mg
C 5 mg
D 251 mg
stenophyllanin B

stenophyllanin B

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol for 90h; Heating; Yield given;
procyanidin B3
23567-23-9

procyanidin B3

mercaptoacetic acid
68-11-1

mercaptoacetic acid

A

[(2R,3R)-2-(3,4-Dihydroxy-phenyl)-3,5,7-trihydroxy-chroman-4-ylsulfanyl]-acetic acid

[(2R,3R)-2-(3,4-Dihydroxy-phenyl)-3,5,7-trihydroxy-chroman-4-ylsulfanyl]-acetic acid

B

catechin
154-23-4

catechin

Conditions
ConditionsYield
In ethanol for 1h; boiling water bath;
(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

A

Chloro-acetic acid (2R,3S)-2-(3,4-dihydroxy-phenyl)-5,7-dihydroxy-chroman-3-yl ester

Chloro-acetic acid (2R,3S)-2-(3,4-dihydroxy-phenyl)-5,7-dihydroxy-chroman-3-yl ester

B

(2R,3S)-2,3-trans-6-<(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan
104113-23-7

(2R,3S)-2,3-trans-6-<(2R,3S,4R)-2,3-trans-3,4-cis-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan

C

(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan
69176-55-2

(2R,3S)-2,3-trans-6-<(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxyflavan-4-yl>-3,3',4',5,7-pentahydroxyflavan

D

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid; chloroacetic acid In ethanol for 24h; Heating;A 8 mg
B n/a
C 8 mg
D 53 mg
C60H48O24
114637-80-8

C60H48O24

A

proanthocyanidin A-2 4'-benzylthioether
50562-99-7, 114612-76-9, 140145-59-1

proanthocyanidin A-2 4'-benzylthioether

B

4β-benzylthioepicatechin
37064-35-0

4β-benzylthioepicatechin

C

catechin
154-23-4

catechin

Conditions
ConditionsYield
With acetic acid; phenylmethanethiol In ethanol for 10h; Heating;A 25 mg
B 12 mg
C 11 mg
acetone
67-64-1

acetone

catechin
154-23-4

catechin

(6aS,12aR)-6a,12a-trans-2,3,8,10-Tetrahydroxy-5,5-dimethyl-5,6a,7,12a-tetrahydro<1>benzopyrano<3,2-c><2>benzopyran
132125-04-3

(6aS,12aR)-6a,12a-trans-2,3,8,10-Tetrahydroxy-5,5-dimethyl-5,6a,7,12a-tetrahydro<1>benzopyrano<3,2-c><2>benzopyran

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In tetrahydrofuran; acetone at -20℃; Pictet-Spengler Synthesis;100%
With trimethylsilyl trifluoromethanesulfonate In tetrahydrofuran at -5℃; for 12h;76.3%
With boron trifluoride diethyl etherate In acetone at 20℃; for 3h; oxa-Pictet-Spengler reaction;71%
With water; toluene-4-sulfonic acid at 22℃; for 72h;24%
With water; toluene-4-sulfonic acid at 22℃; for 72h; Mechanism; Product distribution; also other flavan-3-ols; other acids, variation of conditions;
acetic anhydride
108-24-7

acetic anhydride

catechin
154-23-4

catechin

(+)-pentaacetylcatechin
16198-01-9

(+)-pentaacetylcatechin

Conditions
ConditionsYield
With pyridine In water at 0 - 20℃;99%
With sodium acetate
With pyridine
dimethyl sulfate
77-78-1

dimethyl sulfate

catechin
154-23-4

catechin

(2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether
51079-25-5

(2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether

Conditions
ConditionsYield
Stage #1: catechin With potassium carbonate In acetone for 1h; Inert atmosphere;
Stage #2: dimethyl sulfate In acetone Reflux; Inert atmosphere;
99%
Stage #1: catechin With potassium carbonate In acetone for 1h; Inert atmosphere;
Stage #2: dimethyl sulfate In acetone Reflux; Inert atmosphere;
99%
Stage #1: catechin With potassium carbonate In acetone for 1h; Inert atmosphere;
Stage #2: dimethyl sulfate In acetone for 2h; Inert atmosphere; Reflux;
99%
benzyl chloride
100-44-7

benzyl chloride

catechin
154-23-4

catechin

5,7,3',4'-tetra-O-benzyl-(+)-catechin
20728-73-8

5,7,3',4'-tetra-O-benzyl-(+)-catechin

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide at -78 - 20℃;98%
With sodium hydride In N,N-dimethyl-formamide at -78 - 20℃; for 7.25h;97%
With sodium hydride In N,N-dimethyl-formamide; mineral oil at -78 - 20℃; for 7.25h; Inert atmosphere;94%
2-Nitrobenzenesulfonyl chloride
1694-92-4

2-Nitrobenzenesulfonyl chloride

catechin
154-23-4

catechin

(2R,3S)-2-(3,4-bis(2-nitrophenylsulfonyloxy)phenyl)-3-hydroxychromane-5,7-diyl bis(2-nitrobenzenesulfonate)
1186527-26-3

(2R,3S)-2-(3,4-bis(2-nitrophenylsulfonyloxy)phenyl)-3-hydroxychromane-5,7-diyl bis(2-nitrobenzenesulfonate)

Conditions
ConditionsYield
With triethylamine In acetonitrile at -20℃; Inert atmosphere; regioselective reaction;94%
With triethylamine In acetonitrile at -20℃; for 1.5h; Inert atmosphere;94%
benzyl chloride
100-44-7

benzyl chloride

catechin
154-23-4

catechin

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman
85443-49-8

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide; mineral oil at -78 - 20℃; Inert atmosphere;91%
benzyl chloride
100-44-7

benzyl chloride

catechin
154-23-4

catechin

4'-O-benzylcatechin

4'-O-benzylcatechin

Conditions
ConditionsYield
With sodium hydride at -78 - 20℃;90%
n-dodecanoyl chloride
112-16-3

n-dodecanoyl chloride

catechin
154-23-4

catechin

3',4',3,5,7-pentadodecanoyl (+)-catechin

3',4',3,5,7-pentadodecanoyl (+)-catechin

Conditions
ConditionsYield
With pyridine; dmap at 20℃; for 24h;90%
1-deoxy-1-fluoro-α-D-glucose
2106-10-7

1-deoxy-1-fluoro-α-D-glucose

catechin
154-23-4

catechin

(+)-catechin 7-α-O-glucoside
345319-75-7

(+)-catechin 7-α-O-glucoside

Conditions
ConditionsYield
With α-glucosidase from sulfolobus solfataricus In dimethyl sulfoxide at 45℃; for 2h; pH=9; Enzymatic reaction;90%
lauric acid
143-07-7

lauric acid

catechin
154-23-4

catechin

3'-dodecanoyl (+)-catechin

3'-dodecanoyl (+)-catechin

Conditions
ConditionsYield
With lipozyme TLIM In ethanol at 45℃; for 12h; Enzymatic reaction;86.9%
Indole-3-carboxaldehyde
487-89-8

Indole-3-carboxaldehyde

allyl bromide
106-95-6

allyl bromide

catechin
154-23-4

catechin

(2R,3S)-2-(3,4-dihydroxy-phenyl)-8-[1-(1H-indol-3-yl)-but-3-enyl]-chroman-3,5,7-triol
1043872-04-3

(2R,3S)-2-(3,4-dihydroxy-phenyl)-8-[1-(1H-indol-3-yl)-but-3-enyl]-chroman-3,5,7-triol

Conditions
ConditionsYield
With indium In tetrahydrofuran; water at 50℃; for 8h;86%
benzyl bromide
100-39-0

benzyl bromide

catechin
154-23-4

catechin

5,7,3',4'-tetra-O-benzyl-(+)-catechin
20728-73-8

5,7,3',4'-tetra-O-benzyl-(+)-catechin

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 0 - 20℃;81%
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 20h;74%
Stage #1: catechin With potassium carbonate In N,N-dimethyl-formamide at 0℃; for 0.25h; Inert atmosphere;
Stage #2: benzyl bromide In N,N-dimethyl-formamide at 0 - 25℃; Inert atmosphere;
68%
benzyl bromide
100-39-0

benzyl bromide

benzyl chloride
100-44-7

benzyl chloride

catechin
154-23-4

catechin

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman
85443-49-8

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman

Conditions
ConditionsYield
Stage #1: benzyl chloride; catechin With potassium carbonate In N,N-dimethyl-formamide at 130℃; for 3h;
Stage #2: benzyl bromide With sodium hydride In N,N-dimethyl-formamide at 20℃; for 3h;
81%
O-acetylsalicyloyl chloride
5538-51-2

O-acetylsalicyloyl chloride

catechin
154-23-4

catechin

(2R,3S)-3,3',4',5,7-penta-O-(2-O-acetylsalicyl)-2-(3',4'-dihydroxyphenyl)chroman-3,5,7-triol

(2R,3S)-3,3',4',5,7-penta-O-(2-O-acetylsalicyl)-2-(3',4'-dihydroxyphenyl)chroman-3,5,7-triol

Conditions
ConditionsYield
With pyridine In 1,4-dioxane at 25℃; for 6h;80.7%
hexanal
66-25-1

hexanal

catechin
154-23-4

catechin

sodium thiomethoxide
5188-07-8

sodium thiomethoxide

(+)-6,8-bis(1-methylthiohexyl)catechin

(+)-6,8-bis(1-methylthiohexyl)catechin

Conditions
ConditionsYield
With hydrogenchloride In acetonitrile at 20℃; for 6h;80.6%
4-nitro-benzoyl chloride
122-04-3

4-nitro-benzoyl chloride

catechin
154-23-4

catechin

(2R,3S)-3,3',4',5,7-penta-O-(4-nitrobenzoyl)-2-(3',4'-trihydroxyphenyl)chroman-3,5,7-triol

(2R,3S)-3,3',4',5,7-penta-O-(4-nitrobenzoyl)-2-(3',4'-trihydroxyphenyl)chroman-3,5,7-triol

Conditions
ConditionsYield
With pyridine In 1,4-dioxane at 25℃; for 6h;79.5%
propionic acid anhydride
123-62-6

propionic acid anhydride

catechin
154-23-4

catechin

C27H30O10

C27H30O10

Conditions
ConditionsYield
With triethylamine In tert-butyl methyl ether at 20℃; for 15h;78%
benzyl bromide
100-39-0

benzyl bromide

catechin
154-23-4

catechin

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman
85443-49-8

(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide Reagent/catalyst;77%
Octanal
124-13-0

Octanal

catechin
154-23-4

catechin

sodium thiomethoxide
5188-07-8

sodium thiomethoxide

(+)-6,8-bis(1-methylthiooctyl)catechin

(+)-6,8-bis(1-methylthiooctyl)catechin

Conditions
ConditionsYield
With hydrogenchloride In acetonitrile at 20℃; for 6h;76.9%
4-oxopentanoic acid ethyl ester
539-88-8

4-oxopentanoic acid ethyl ester

catechin
154-23-4

catechin

(6aS,12aR)-3-(2,3,8,10-tetrahydroxy-5-methyl-5,6a,7,12a-tetrahydro-isochromeno[4,3-b]chromen-5-yl)-propionic acid ethyl ester
1198466-41-9

(6aS,12aR)-3-(2,3,8,10-tetrahydroxy-5-methyl-5,6a,7,12a-tetrahydro-isochromeno[4,3-b]chromen-5-yl)-propionic acid ethyl ester

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In tetrahydrofuran at -5℃;76.3%
oxotitanium tetra-tert-butylphthalocyanine

oxotitanium tetra-tert-butylphthalocyanine

catechin
154-23-4

catechin

titanium tetra-tert-butylphthalocyanine catechin complex

titanium tetra-tert-butylphthalocyanine catechin complex

Conditions
ConditionsYield
In dichloromethane room temp., under N2, overnight; evapd., residue was applied to a size-exclusion column (Bio-beds S-X1, Bio-rad) using CH2Cl2 as eluent, green portion was collected and recrystd. from CH2Cl2-hexane; elem. anal.;75%
pentanal
110-62-3

pentanal

catechin
154-23-4

catechin

sodium thiomethoxide
5188-07-8

sodium thiomethoxide

(+)-6,8-bis(1-methylthiopentyl)catechin

(+)-6,8-bis(1-methylthiopentyl)catechin

Conditions
ConditionsYield
With hydrogenchloride In acetonitrile at 20℃; for 6h;73.5%
pentan-3-one
96-22-0

pentan-3-one

catechin
154-23-4

catechin

(6aS,12aR)-6a,12a-trans-2,3,8,10-tetrahydroxy-5,5-diethyl-5,6a,7,12a-tetrahydro-[1]benzopyrano[3,2-c][2]benzopyran

(6aS,12aR)-6a,12a-trans-2,3,8,10-tetrahydroxy-5,5-diethyl-5,6a,7,12a-tetrahydro-[1]benzopyrano[3,2-c][2]benzopyran

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In tetrahydrofuran at -5℃; for 12h;73.5%
catechin
154-23-4

catechin

methyl iodide
74-88-4

methyl iodide

(2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether
51079-25-5

(2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 15.5h; Inert atmosphere;72%
With potassium carbonate In acetone for 336h; Inert atmosphere;59%
butyraldehyde
123-72-8

butyraldehyde

catechin
154-23-4

catechin

sodium thiomethoxide
5188-07-8

sodium thiomethoxide

(+)-6,8-bis(1-methylthiobutyl)catechin

(+)-6,8-bis(1-methylthiobutyl)catechin

Conditions
ConditionsYield
With hydrogenchloride In acetonitrile at 20℃; for 6h;71.5%
caprinaldehyde
112-31-2

caprinaldehyde

catechin
154-23-4

catechin

sodium thiomethoxide
5188-07-8

sodium thiomethoxide

(+)-6,8-bis(1-methylthiodecyl)catechin

(+)-6,8-bis(1-methylthiodecyl)catechin

Conditions
ConditionsYield
With hydrogenchloride In acetonitrile at 20℃; for 6h;71.1%

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