Products

Refine

Country

Business Type

Certificate

Display

Henan Allgreen Chemical Co.,Ltd

high quality Appearance:white powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

ColuMbin

Cas:546-97-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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% Columbin 546-97-4 HACCP Manufacturer

Cas:546-97-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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 according to the contract research and development services for the fine chemicals, ph

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

Columbin 546-97-4

Cas:546-97-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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)

Columbin

Cas:546-97-4

Min.Order:10 Milligram

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

Columbin

Cas:546-97-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Shaanxi Cuicheng Biomedical Technology Co., Ltd.

Why Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu

Columbin

Cas:546-97-4

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Henan Wentao Chemical Product Co., Ltd.

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 etc. 3) oem/odm available; 4) rea

ColumbinCAS NO.: 546-97-4

Cas:546-97-4

Min.Order:1 Kilogram

FOB Price: $4.0

Type:Lab/Research institutions

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

Columbin

Cas:546-97-4

Min.Order:1 Gram

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-0564 Columbin

Cas:546-97-4

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re

Columbin CAS 546-97-4

Cas:546-97-4

Min.Order:0

Negotiable

Type:Other

inquiry

Sinoway Industrial Co., Ltd.

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

Hangzhou Dingyan Chem Co., Ltd

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 your re

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec 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

Acmec Columbin C53260 20mg

Cas:546-97-4

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

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

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard

High quality CAS 546-97-4 with best price

Cas:546-97-4

Min.Order:1 Kilogram

FOB Price: $112.0

Type:Trading Company

inquiry

Antimex Chemical Limied

Our own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin

3-Buten-1-amine,N-nitroso-N-2-propen-1-yl-

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We 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

DB BIOTECH CO., LTD

best seller Application:API

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

546-97-4 Application:intermediate

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Asure Biochem CO.,LTD.

*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Use in healthcare products. Use in food products. Use in Cosmetic p

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Yuanye Bio-Technology Co., Ltd.

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

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

546-97-4

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Muhuang Technology Co., Ltd

best seller Application:API

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

home-produced Application:medicine

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

Columbin

Cas:546-97-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

columbin glucoside
105597-94-2

columbin glucoside

columbin
546-97-4

columbin

Conditions
ConditionsYield
With AcONa buffer; acetic acid at 36.5℃; for 720h; hesperidinase;11.5 mg
columbin glucoside
105597-94-2

columbin glucoside

A

12-epi-columbin

12-epi-columbin

B

columbin
546-97-4

columbin

Conditions
ConditionsYield
With hydrogenchloride In 1,4-dioxane; water at 80℃; for 3h;A 1.2 mg
B 0.5 mg
acetic anhydride
108-24-7

acetic anhydride

columbin
546-97-4

columbin

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone
100899-59-0, 100938-02-1

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
With sodium acetate
dimethyl sulfate
77-78-1

dimethyl sulfate

columbin
546-97-4

columbin

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone
98891-86-2, 106247-94-3

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
With sodium hydroxide
columbin
546-97-4

columbin

Dihydrocolumbin
10413-81-7

Dihydrocolumbin

Conditions
ConditionsYield
With palladium on activated charcoal; Lindlar's catalyst; ethyl acetate Hydrogenation;
With palladium on activated charcoal; acetone Hydrogenation;
columbin
546-97-4

columbin

isocolumbin
471-54-5

isocolumbin

Conditions
ConditionsYield
With sodium hydroxide
acetic anhydride
108-24-7

acetic anhydride

columbin
546-97-4

columbin

C22H24O7
100899-59-0

C22H24O7

Conditions
ConditionsYield
With sodium acetate for 0.5h; Heating;81 mg
acetic anhydride
108-24-7

acetic anhydride

columbin
546-97-4

columbin

C22H24O7
100938-02-1

C22H24O7

Conditions
ConditionsYield
With sodium acetate for 5h; Heating;76 mg
columbin
546-97-4

columbin

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone
98891-86-2, 106247-94-3

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq.-ethanolic NaOH-solution
2: aq.-ethanolic NaOH-solution
View Scheme
columbin
546-97-4

columbin

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-13(16),14-diene-19,20-dioic acid-19=>1;20=>12-dilactone

(12S)-15,16-epoxy-1β,12-dihydroxy-4-methoxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-13(16),14-diene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: palladium/calcium carbonate; ethyl acetate / Hydrogenation
2: aq.-ethanolic NaOH-solution
View Scheme
columbin
546-97-4

columbin

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-13(16),14-diene-19,20-dioic acid-19=>1;20=>12-dilactone
114536-67-3

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-13(16),14-diene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: palladium/charcoal; acetone / Hydrogenation
2: sodium acetate
View Scheme
columbin
546-97-4

columbin

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone
100899-59-0, 100938-02-1

(12S)-4-acetoxy-15,16-epoxy-1β,12-dihydroxy-5,9-dimethyl-17,18-dinor-9βH,10α-labda-2,13(16),14-triene-19,20-dioic acid-19=>1;20=>12-dilactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq.-ethanolic NaOH-solution
2: sodium acetate
View Scheme
columbin
546-97-4

columbin

Dihydroisocolumbin
10207-58-6

Dihydroisocolumbin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq.-ethanolic NaOH-solution
2: palladium/charcoal; ethyl acetate / Hydrogenation
View Scheme
Multi-step reaction with 2 steps
1: palladium/calcium carbonate; ethyl acetate / Hydrogenation
2: aq.-ethanolic KOH-solution
View Scheme

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View