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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

Canthaxanthin

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $800.0 / 1000.0

Type:Other

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Xi'an Quanao Biotech Co., Ltd.

Come From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of conten

Feed additive 10% canthaxanthin powder for Antioxidant cas: 514-78-3

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $63.0 / 76.0

Type:Manufacturers

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Purestar Chem Enterprise Co.,Ltd

What is canthaxanthin Name: Canthaxanthin Chemical names: β-carotene-4,4’-dione; 4,4’- diketo-β-carotene Empirical formular: C40H52O2 Molecular Mass: 564.82 Application of canthaxanthin An inherited blood disorder called

Canthaxanthin 96%

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $7.0

Type:Trading Company

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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

High Quality Natural Canthaxanthin

Cas:514-78-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Greenutra Resource Inc

High quality canthaxanthin Specification: Name: canthaxanthin Aspect Viplet-red to Red-violet free flowing powder ContentOdor & taste

High quality canthaxanthin

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $13.0

Type:Trading Company

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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

Canthaxanthin Manufacturer/High quality/Best price/In stock

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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 Canthaxanthin supplier in China

Cas:514-78-3

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Assay (Ursolic acid) 98%min 98.22% -----------------------------------------------------------------------------------------------------------

High purity 514-78-3 canthaxanthin

Cas:514-78-3

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Trading Company

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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

Canthaxanthin CAS NO.514-78-3

Cas:514-78-3

Min.Order:100 Gram

FOB Price: $2.0

Type:Manufacturers

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Wuhan Fortuna Chemical 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:Violet-red to red-violet free flowing powder Storage:0-6°C Pa

Manufacturer supply Canthaxanthin 10% CAS 514-78-3 of feed grade

Cas:514-78-3

Min.Order:20 Kilogram

FOB Price: $80.0 / 120.0

Type:Trading Company

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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 Canthaxanthin

Cas:514-78-3

Min.Order:1

Negotiable

Type:Other

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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 Quality 99% Canthaxanthin 514-78-3 ISO Producer

Cas:514-78-3

Min.Order:1 Gram

FOB Price: $0.1

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

Canthaxanthin CAS NO.514-78-3

Cas:514-78-3

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

Canthaxanthin

Cas:514-78-3

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Hebei Nengqian Chemical Import and Export Co., LTD

Density: 1.003 ± 0.06 g/cm3 (Predicted) Melting point: 217-218 ℃ Boiling point: 717.0 ± 40.0 ° C (Predicted) Flash point: 253.9 ° C Steam pressure: 2.09E-20mmHg at 25 ° C Solubility: Chloroform (Slightly) Refractive index: 1

Canthaxanthin 514-78-3

Cas:514-78-3

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 514-78-3 with competitive price

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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 514-78-3 Canthaxanthin CAS 514-78-3 with best price

Cas:514-78-3

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd

CanthaxanthinCAS 514-78-3

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $190.0 / 200.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name Canthaxanthin Other names β-carotene-4,4’-dione; 4,4-dioxo-β-carotene CAS NO. 514-78-3 Appearance Red or red-brown powder

Canthaxanthin CAS: 514-78-3

Cas:514-78-3

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:purple to reddish-violet Storage:Room temperature Package:25kg/drum Application:Chemicals Transportation:Express/Sea/Air Port:Any port in china

High Quality Canthaxanthin for Antioxidant CAS:514-78-3

Cas:514-78-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

HANWAYS CHEMPHARM CO.,LIMITED

Hanways 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

Canthaxanthin CAS No 514-78-3 High Quanlity 10% Canthaxanthin with Best Price

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $200.0 / 400.0

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

Canthaxanthin 514-78-3

Cas:514-78-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We 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

Leader Biochemical Group

About Product Details Items Specifications Test Results Appearance White to white crystalline powde

Factory Supply High Quality Canthaxanthin CAS 514-78-3

Cas:514-78-3

Min.Order:1 Gram

FOB Price: $1.0 / 2.0

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 present

Canthaxanthin

Cas:514-78-3

Min.Order:1 Kilogram

FOB Price: $35.0 / 40.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Canthaxanthin CAS: 514-78-3 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 intermediate

Canthaxanthin CAS: 514-78-3

Cas:514-78-3

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

Canthaxanthin

Cas:514-78-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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

Canthaxanthin/ LIDE PHARMA- Factory supply / Best price

Cas:514-78-3

Min.Order:0

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

Canthaxanthin

Cas:514-78-3

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

Canthaxanthin

Cas:514-78-3

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

beta-carotene
7235-40-7

beta-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With cerium(IV) oxide; sulfuric acid; potassium iodide In dichloromethane; water at 0℃; under 760.051 Torr; for 2.5h; Reagent/catalyst; Temperature; UV-irradiation;99.5%
With sulfuric acid; copper(II) sulfate; potassium iodide In dichloromethane; water at -5 - 45℃; under 760.051 Torr; for 4h; Temperature; Reagent/catalyst; Green chemistry;98.05%
With dihydrogen peroxide; potassium iodide; lithium hydroxide In dichloromethane; water at -5 - 45℃; under 760.051 Torr; for 5.5h; Catalytic behavior; Temperature; Reagent/catalyst; Green chemistry;98.05%
β-carotene
161023-01-4

β-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With Aminoiminomethanesulfinic acid In dichloromethane; water at 20 - 40℃; for 17h; Temperature; Industrial scale;94.66%
(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial
5056-17-7

(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial

C19H31O4P

C19H31O4P

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With sodium t-butanolate In dimethyl sulfoxide; toluene at -20℃; for 6h; Reagent/catalyst; Temperature; Solvent;92.1%
7,8,7',8'-tetrahydro-8,8'-dimethoxy-canthaxanthin

7,8,7',8'-tetrahydro-8,8'-dimethoxy-canthaxanthin

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With sodium hydroxide; hydrogen bromide In n-heptane; dichloromethane82%
(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial
5056-17-7

(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial

(2E,4E)-<5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-3-methyl-2,4-pentadien-1-yl>triphenylphosphonium bromide
63184-93-0

(2E,4E)-<5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-3-methyl-2,4-pentadien-1-yl>triphenylphosphonium bromide

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With sodium methylate In methanol; dichloromethane at -10℃; for 1h;78%
aqueous sodium chloride

aqueous sodium chloride

3-methyl-5-(2,6,6-trimethyl-3-oxocyclohex-1-enyl)-2,4-pentadienylphosphonic acid, diethyl ester

3-methyl-5-(2,6,6-trimethyl-3-oxocyclohex-1-enyl)-2,4-pentadienylphosphonic acid, diethyl ester

(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial
5056-17-7

(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial

benzene
71-43-2

benzene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With potassium tert-butylate In tetrahydrofuran; chloroform52%
N-Bromosuccinimide
128-08-5

N-Bromosuccinimide

4-Phenylmorpholine
92-53-5

4-Phenylmorpholine

ethanol
64-17-5

ethanol

chloroform
67-66-3

chloroform

beta-carotene
7235-40-7

beta-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
at -18℃; Reaktion ueber mehrere Stufen;
5,6;5',6'-diseco-β,β-carotene-4,6,4',6'-tetraone
105819-60-1

5,6;5',6'-diseco-β,β-carotene-4,6,4',6'-tetraone

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With potassium hydroxide; benzene
4',5'-didehydro-4,5'-retro-β,β-carotene
3297-24-3, 16962-72-4, 71629-79-3

4',5'-didehydro-4,5'-retro-β,β-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
(i) NBS, AcOH, PhNMe2, (ii) KOH, MeOH, benzene; Multistep reaction;
all-trans canthaxanthin radical cation

all-trans canthaxanthin radical cation

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With TX-100 In water Rate constant; Irradiation;
With puerarin dianion In methanol; chloroform at 25℃; Thermodynamic data; Kinetics; Reagent/catalyst;
lycopene
502-65-8

lycopene

all-trans canthaxanthin radical cation

all-trans canthaxanthin radical cation

A

canthaxanthin
514-78-3

canthaxanthin

B

lycopene radical cation

lycopene radical cation

Conditions
ConditionsYield
In benzene Rate constant; pulse radiolysis;
beta-carotene
7235-40-7

beta-carotene

all-trans canthaxanthin radical cation

all-trans canthaxanthin radical cation

A

canthaxanthin
514-78-3

canthaxanthin

B

all-trans β-carotene radical cation

all-trans β-carotene radical cation

Conditions
ConditionsYield
In benzene Rate constant; pulse radiolysis;
β,β-carotene-4,4'-diol

β,β-carotene-4,4'-diol

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With 1,2,3,4-tetrahydro-1-naphthyl hydroperoxide
5,6;5',6'-diseco-β,β-carotene-4,6,4',6'-tetraone
105819-60-1

5,6;5',6'-diseco-β,β-carotene-4,6,4',6'-tetraone

benzene
71-43-2

benzene

methanol. KOH-solution

methanol. KOH-solution

canthaxanthin
514-78-3

canthaxanthin

N-Bromosuccinimide
128-08-5

N-Bromosuccinimide

ethanol
64-17-5

ethanol

chloroform
67-66-3

chloroform

beta-carotene
7235-40-7

beta-carotene

1-ethyl-morpholine

1-ethyl-morpholine

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Reaktion ueber mehrere Stufen;
chloroform
67-66-3

chloroform

1,2,3,4-tetrahydro-1-naphthyl hydroperoxide
771-29-9

1,2,3,4-tetrahydro-1-naphthyl hydroperoxide

beta-carotene
7235-40-7

beta-carotene

A

canthaxanthin
514-78-3

canthaxanthin

B

3',4'-didehydro-β,β-caroten-4-one
991-90-2

3',4'-didehydro-β,β-caroten-4-one

C

β,β-carotene-4,4'-diol

β,β-carotene-4,4'-diol

D

β,β-caroten-4-one

β,β-caroten-4-one

4'-ethoxy-β,β-caroten-4-one

4'-ethoxy-β,β-caroten-4-one

A

canthaxanthin
514-78-3

canthaxanthin

B

4'-ethoxy-3',4'-didehydro-β,β-caroten-4-one

4'-ethoxy-3',4'-didehydro-β,β-caroten-4-one

Conditions
ConditionsYield
With N-Bromosuccinimide; chloroform beim anschliessenden Behandeln mit 4-Phenyl-morpholin;
C40H51O2(1+)

C40H51O2(1+)

A

canthaxanthin
514-78-3

canthaxanthin

B

ascorbic acid radical

ascorbic acid radical

Conditions
ConditionsYield
With triton X100; ascorbic acid In methanol Rate constant; pH 7;
2,4,4-Trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-1-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enyl-oxonium

2,4,4-Trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-1-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enyl-oxonium

A

9-cis-β,β-caroten-4,4'-diol

9-cis-β,β-caroten-4,4'-diol

B

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With water In acetone
C40H56(2+)

C40H56(2+)

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 18 percent / H2O / acetone
2: NaBH4
3: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
4: H2O / acetone
View Scheme
Multi-step reaction with 6 steps
1: 18 percent / H2O / acetone
2: NaBH4
3: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
4: 19 percent / acetone
5: H2O / acetone
View Scheme
2,4,4-Trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-1-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enyl-oxonium

2,4,4-Trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-1-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enyl-oxonium

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 19 percent / acetone
2: H2O / acetone
View Scheme
4'-acetylthio-β,β-carotene
846539-06-8

4'-acetylthio-β,β-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: H2O / acetone
View Scheme
canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: NaBH4
2: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
3: H2O / acetone
View Scheme
Multi-step reaction with 5 steps
1: NaBH4
2: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
3: 19 percent / acetone
4: H2O / acetone
View Scheme
4,4'-diacetoxy-β,β-carotene
58540-69-5

4,4'-diacetoxy-β,β-carotene

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: CF3COOH / CH2Cl2 / -10 °C
2: H2O / acetone
View Scheme
Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: CF3SO3H / CH2Cl2 / -15 °C
2: 18 percent / H2O / acetone
3: NaBH4
4: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
5: H2O / acetone
View Scheme
Multi-step reaction with 7 steps
1: CF3SO3H / CH2Cl2 / -15 °C
2: 18 percent / H2O / acetone
3: NaBH4
4: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
5: 19 percent / acetone
6: H2O / acetone
View Scheme
Multi-step reaction with 2 steps
1: CF3COOH / CH2Cl2 / 0.17 h / -20 °C
2: H2O / acetone
View Scheme
(E)-3-methylpent-2-en-4-yn-1-ol
6153-06-6

(E)-3-methylpent-2-en-4-yn-1-ol

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 92 percent / p-toluenesulfonic acid / 1.) 5 deg C, 2.) RT, 10 min
2: 1.) n-BuLi / 1.) ether, hexane, RT, 15 min, 2.) 22 deg C, 1 h
3: 72 percent / H2, potassium carbonate / Lindlar catalyst / toluene / 3 h / 20 °C / 760 Torr
4: PBr3 / diethyl ether / 0.08 h / Ambient temperature
5: 69 percent / benzene / Heating
6: 78 percent / NaOCH3 / CH2Cl2; methanol / 1 h / -10 °C
View Scheme
4-penten-3-one
1629-58-9

4-penten-3-one

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: 1.) LDA / 1.) THF, hexane, -60 deg C, 90 min, 2.) a) 3 min, b) RT, 2 h
2: 85 percent / NaH / methanol / 3 h / Heating
3: 91 percent / p-toluenesulfonic acid / benzene / 3 h / Heating
4: 1.) n-BuLi / 1.) ether, hexane, RT, 15 min, 2.) 22 deg C, 1 h
5: 72 percent / H2, potassium carbonate / Lindlar catalyst / toluene / 3 h / 20 °C / 760 Torr
6: PBr3 / diethyl ether / 0.08 h / Ambient temperature
7: 69 percent / benzene / Heating
8: 78 percent / NaOCH3 / CH2Cl2; methanol / 1 h / -10 °C
View Scheme
2,2-dimethyl-5-oxo-heptanoic acid methyl ester
64095-45-0

2,2-dimethyl-5-oxo-heptanoic acid methyl ester

canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: 85 percent / NaH / methanol / 3 h / Heating
2: 91 percent / p-toluenesulfonic acid / benzene / 3 h / Heating
3: 1.) n-BuLi / 1.) ether, hexane, RT, 15 min, 2.) 22 deg C, 1 h
4: 72 percent / H2, potassium carbonate / Lindlar catalyst / toluene / 3 h / 20 °C / 760 Torr
5: PBr3 / diethyl ether / 0.08 h / Ambient temperature
6: 69 percent / benzene / Heating
7: 78 percent / NaOCH3 / CH2Cl2; methanol / 1 h / -10 °C
View Scheme
Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 1.) sodium acetate, peracetic acid, 2.) NaOCH3 / 1.) dichloromethane, acetic acid, a) 15 deg C, 2,5 h, b) RT, 3 h, 2.) methanol, reflux, 3 h
2: tetrahydrofuran / 0.5 h / 10 °C
3: aluminum isopropoxide / acetone; CH2Cl2 / 5 h / Heating
4: CH2Cl2 / 1 h / Ambient temperature
5: 78 percent / NaOCH3 / CH2Cl2; methanol / 1 h / -10 °C
View Scheme
Multi-step reaction with 6 steps
1: 1.) sodium acetate, peracetic acid, 2.) NaOCH3 / 1.) dichloromethane, acetic acid, a) 15 deg C, 2,5 h, b) RT, 3 h, 2.) methanol, reflux, 3 h
2: tetrahydrofuran / 0.5 h / 10 °C
3: aluminum isopropoxide / acetone; CH2Cl2 / 5 h / Heating
4: PBr3 / diethyl ether / 1 h / Ambient temperature
5: benzene / 1.5 h / Heating
6: 78 percent / NaOCH3 / CH2Cl2; methanol / 1 h / -10 °C
View Scheme
Multi-step reaction with 6 steps
1.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 1 h
2.1: sodium methylate / methanol / 3 h / Reflux
3.1: sodium methylate / toluene / 3.5 h
4.1: sodium ethanolate / ethanol / 25 °C / Inert atmosphere
5.1: potassium tert-butylate / tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide / 5.5 h / Inert atmosphere
5.2: 2.58 h / -25 - 25 °C / Inert atmosphere
6.1: aluminum isopropoxide / acetone / 5 h / Reflux; Inert atmosphere
6.2: 10 h / 80 °C / Inert atmosphere
View Scheme
canthaxanthin
514-78-3

canthaxanthin

girard's reagent P
1126-58-5

girard's reagent P

(GRP)2-canthaxanthin

(GRP)2-canthaxanthin

Conditions
ConditionsYield
With hydrogenchloride In methanol; chloroform34%
canthaxanthin
514-78-3

canthaxanthin

4'-thioxo-β,β-caroten-4-one

4'-thioxo-β,β-caroten-4-one

Conditions
ConditionsYield
With Lawessons reagent In benzene at 40℃; for 4h;22%
With Lawessons reagent In carbon disulfide for 4h; Inert atmosphere; Reflux;
canthaxanthin
514-78-3

canthaxanthin

(2E,4EZ)-N-(4-hexyloxyphenyl)-3-methylhexa-2,4-dienamide
1332483-19-8

(2E,4EZ)-N-(4-hexyloxyphenyl)-3-methylhexa-2,4-dienamide

C37H49NO3
1332483-31-4

C37H49NO3

Conditions
ConditionsYield
With Hoveyda-Grubbs catalyst second generation In toluene at 20℃; for 24h; Inert atmosphere; diastereoselective reaction;17%
canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With tellurium; sodium tetrahydroborate In carbon disulfide; ethanol at 40℃; for 0.5h;5%
Multi-step reaction with 3 steps
1: NaBH4
2: CF3SO3H / CH2Cl2 / -15 °C
3: 18 percent / H2O / acetone
View Scheme
With sodium tetrahydroborate
canthaxanthin
514-78-3

canthaxanthin

11,15'-dihydrooxepino-β,β-carotene-4,4'-dione

11,15'-dihydrooxepino-β,β-carotene-4,4'-dione

Conditions
ConditionsYield
With 18-crown-6 ether; sodium 3-chlorobenzoate; 3-chloro-benzenecarboperoxoic acid In dichloromethane at -20℃; for 30h;2%
canthaxanthin
514-78-3

canthaxanthin

13,14-trans-canthaxanthin-13,14-ozonide

13,14-trans-canthaxanthin-13,14-ozonide

13,14-cis-canthaxanthin-13,14-ozonide

13,14-cis-canthaxanthin-13,14-ozonide

Conditions
ConditionsYield
With 18-crown-6 ether; tert-butyl methyl ether; sodium 3-chlorobenzoate; 3-chloro-benzenecarboperoxoic acid In dichloromethane at 20℃; for 30h;A 0.2%
B 1%
Conditions
ConditionsYield
With lithium aluminium tetrahydride
With sodium tetrahydroborate In ethanol
With lithium aluminium tetrahydride In diethyl ether
canthaxanthin
514-78-3

canthaxanthin

6,5'-retro-5,6-dihydro-β,β-carotene-4,4'-dione
13186-17-9, 81369-49-5

6,5'-retro-5,6-dihydro-β,β-carotene-4,4'-dione

Conditions
ConditionsYield
With acetic acid; zinc In pyridine
canthaxanthin
514-78-3

canthaxanthin

A

C40H52O2(2+)
113301-77-2

C40H52O2(2+)

B

C40H52O2(1+)
113349-54-5

C40H52O2(1+)

Conditions
ConditionsYield
Equilibrium constant; Rate constant; electrolysis;
canthaxanthin
514-78-3

canthaxanthin

A

all-trans canthaxanthin radical cation

all-trans canthaxanthin radical cation

B

Canthaxanthin dication

Canthaxanthin dication

Conditions
ConditionsYield
In dichloromethane electrooxidation, comproportionation equilibrium constants, deprotonation equilibrium constant;
canthaxanthin
514-78-3

canthaxanthin

Phoeniconon
50299-51-9

Phoeniconon

Conditions
ConditionsYield
With potassium tert-butylate; oxygen
canthaxanthin
514-78-3

canthaxanthin

Conditions
ConditionsYield
With potassium tert-butylate; oxygen
canthaxanthin
514-78-3

canthaxanthin

all-trans canthaxanthin radical cation

all-trans canthaxanthin radical cation

Conditions
ConditionsYield
With TX-100; trichloromethyl peroxyl In water Rate constant; Irradiation;
Conditions
ConditionsYield
With tert-butylammonium hexafluorophosphate(V) In dichloromethane at 4℃; for 0.0833333h; Product distribution; Mechanism; electrolysis;
With iron(III) chloride In dichloromethane Product distribution; Mechanism;
Conditions
ConditionsYield
With zinc(II) oxide In dichloromethane for 0.25h; Product distribution; Irradiation; also CdS and without semiconductors;
canthaxanthin
514-78-3

canthaxanthin

A

11,15'-dihydrooxepino-β,β-carotene-4,4'-dione

11,15'-dihydrooxepino-β,β-carotene-4,4'-dione

B

15'-formyl-15-nor-β,β-carotene-4,4'-dione

15'-formyl-15-nor-β,β-carotene-4,4'-dione

C

12-formyl-11-nor-β,β-carotene-4,4'-dione

12-formyl-11-nor-β,β-carotene-4,4'-dione

(13RS,15SR)-15',13-epoxy-vinyleno-13,14'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

(13RS,15SR)-15',13-epoxy-vinyleno-13,14'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

Conditions
ConditionsYield
With 2,2'-azobis-(2,4-dimethylvaleronitrile) In benzene at 37℃; for 3h; Yield given; Further byproducts given. Yields of byproduct given;
canthaxanthin
514-78-3

canthaxanthin

A

15'-formyl-15-nor-β,β-carotene-4,4'-dione

15'-formyl-15-nor-β,β-carotene-4,4'-dione

B

13,15'-epoxyvinyleno-13,15'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

13,15'-epoxyvinyleno-13,15'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

C

12-formyl-11-nor-β,β-carotene-4,4'-dione

12-formyl-11-nor-β,β-carotene-4,4'-dione

(13RS,15SR)-15',13-epoxy-vinyleno-13,14'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

(13RS,15SR)-15',13-epoxy-vinyleno-13,14'-dihydro-14,15-dinor-β,β-carotene-4,4'-dione

Conditions
ConditionsYield
With 2,2'-azobis-(2,4-dimethylvaleronitrile) In benzene at 37℃; for 3h; Yield given; Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;
With 2,2'-azobis-(2,4-dimethylvaleronitrile) In benzene at 37℃; for 3h; Yield given; Further byproducts given. Yields of byproduct given;
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