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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

beta,beta-caroten-4-one

Cas:432-68-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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

Manufacturer supply CAS 432-68-8 with best quality

Cas:432-68-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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

b,b-Caroten-4-one 432-68-8

Cas:432-68-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

ECHINENONE CAS:432-68-8 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,

ECHINENONE CAS:432-68-8

Cas:432-68-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

ECHINENONE

Cas:432-68-8

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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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

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD

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

ECHINENONE

Cas:432-68-8

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

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Henan Allgreen Chemical Co.,Ltd

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

ECHINENONE(SH)

Cas:432-68-8

Min.Order:0

Negotiable

Type:Manufacturers

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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.

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

ECHINENONE

Cas:432-68-8

Min.Order:0

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Type:Lab/Research institutions

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Shanghai Chinqesen Biotechnology Co., Ltd.

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

432-68-8

Cas:432-68-8

Min.Order:0

Negotiable

Type:Trading Company

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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

ECHINENONE

Cas:432-68-8

Min.Order:0

Negotiable

Type:Trading Company

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shanghai longbang industry co.,ltd

Shanghai LONGBANG , Boasts strong competitive advantages by our well-trained chemists with rich professional backgroud. We aim to win the market via quick response and fast delivery, as well as continous development for high-tech medical compoun

Echinenone

Cas:432-68-8

Min.Order:10 Gram

Negotiable

Type:Trading Company

inquiry

Nanjing Raymon Biotech Co., Ltd.

b,b-Caroten-4-oneAppearance:Off white to slight yellow solid Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,by Air,By courier like

b,b-Caroten-4-one

Cas:432-68-8

Min.Order:0

Negotiable

Type:Trading Company

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Hebei Ruishun Trade Co.,Ltd

Supply top quality products with a reasonable price Application:api

432-68-8

Cas:432-68-8

Min.Order:0

Negotiable

Type:Trading Company

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Synthetic route

4-oxo-β-apo-12’-carotenal
65861-49-6

4-oxo-β-apo-12’-carotenal

C32H36P(1+)*Cl(1-)

C32H36P(1+)*Cl(1-)

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 24 - 80℃; for 3h; Temperature; Reagent/catalyst; Solvent; Wittig Olefination; Inert atmosphere;89.18%
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

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With chloroform
beta-carotene
7235-40-7

beta-carotene

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With N-Bromosuccinimide; chloroform at -18℃; unter Stickstoff; Versetzen der Reaktionsloesung mit 1-Phenyl-morpholin, anschliessendes Erhitzen und Schuetteln des mit Hexan versetzten Reaktionsgemisches mit wss. HCl;
5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one
105861-29-8

5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one

1-(diethylamino)pentan-3-one methiodide
52103-30-7

1-(diethylamino)pentan-3-one methiodide

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With ethanol; potassium ethoxide; benzene
5,6-seco-β,β-carotene-4,6-dione
105819-59-8

5,6-seco-β,β-carotene-4,6-dione

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With potassium hydroxide; benzene
echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With iodine; Petroleum ether Irradiation;
all-trans 4-acetoxyretinal
76686-06-1, 88424-96-8

all-trans 4-acetoxyretinal

Vitamin A triphenylphosphonium sulfate

Vitamin A triphenylphosphonium sulfate

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
(i) NaOMe, MeOH, benzene, (ii) KOH, MeOH, (iii) Al(OiPr)3, benzene, acetone; Multistep reaction;
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: ethanolic KOH
2: ethanolic potassium ethylate; benzene
3: Lindlar-catalyst; ethyl acetate / Hydrogenation
4: iodine; petroleum ether / Irradiation
View Scheme
5-(2-ethyl-[1,3]dioxolan-2-yl)-3,3-dimethyl-pentan-2-one
96620-27-8

5-(2-ethyl-[1,3]dioxolan-2-yl)-3,3-dimethyl-pentan-2-one

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: ethanolic KOH-solution
2: toluene-4-sulfonic acid
3: methanol. KOH; benzene
View Scheme
4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid
91214-13-0

4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: diethyl ether
2: ethanolic KOH-solution
3: toluene-4-sulfonic acid
4: methanol. KOH; benzene
View Scheme
4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid methyl ester
92038-38-5

4-(2-ethyl-[1,3]dioxolan-2-yl)-2,2-dimethyl-butyric acid methyl ester

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: aqueous methanol. NaOH-solution
2: diethyl ether
3: ethanolic KOH-solution
4: toluene-4-sulfonic acid
5: methanol. KOH; benzene
View Scheme
15,15'-didehydro-8'-apo-β-caroten-8'-al
10464-96-7

15,15'-didehydro-8'-apo-β-caroten-8'-al

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: ethanolic KOH
2: ethanolic potassium ethylate; benzene
3: Lindlar-catalyst; ethyl acetate / Hydrogenation
4: iodine; petroleum ether / Irradiation
View Scheme
15,15'-didehydro-5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one
96711-25-0

15,15'-didehydro-5',6'-dihydro-4'-apo-β,ψ-caroten-6'-one

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: ethanolic potassium ethylate; benzene
2: Lindlar-catalyst; ethyl acetate / Hydrogenation
3: iodine; petroleum ether / Irradiation
View Scheme
15,15'-didehydro-β,β-caroten-4-one
58720-45-9

15,15'-didehydro-β,β-caroten-4-one

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Lindlar-catalyst; ethyl acetate / Hydrogenation
2: iodine; petroleum ether / Irradiation
View Scheme
4,4-ethanediyldioxy-5,6-seco-β,β-caroten-6-one
106629-99-6

4,4-ethanediyldioxy-5,6-seco-β,β-caroten-6-one

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: toluene-4-sulfonic acid
2: methanol. KOH; benzene
View Scheme
isocryptoxanthin
25394-27-8

isocryptoxanthin

echinenone
432-68-8

echinenone

Conditions
ConditionsYield
With β-carotene 4-ketolase In aq. phosphate buffer at 28℃; for 16h; pH=7.8; Enzymatic reaction;
echinenone
432-68-8

echinenone

β,β-carotene-4-thione

β,β-carotene-4-thione

Conditions
ConditionsYield
With Lawessons reagent In benzene at 40℃; for 4h;7%
echinenone
432-68-8

echinenone

4-Hydroxy-β-carotin-4-d

4-Hydroxy-β-carotin-4-d

Conditions
ConditionsYield
With lithium aluminium deuteride In diethyl ether
echinenone
432-68-8

echinenone

A

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-enone

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-enone

B

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-enone

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-enone

Conditions
ConditionsYield
In dichloromethane electrooxidation, comproportionation equilibrium constants, deprotonation equilibrium constant;
echinenone
432-68-8

echinenone

3-Hydroxy-2,3-didehydro-β,β-carotin-4-on
6399-46-8, 58769-85-0

3-Hydroxy-2,3-didehydro-β,β-carotin-4-on

Conditions
ConditionsYield
With potassium tert-butylate; oxygen
echinenone
432-68-8

echinenone

aluminum isopropoxide
555-31-7

aluminum isopropoxide

isopropyl alcohol
67-63-0

isopropyl alcohol

benzene
71-43-2

benzene

all-trans-β-carotenol-(4)

all-trans-β-carotenol-(4)

echinenone
432-68-8

echinenone

isocryptoxanthin
25394-27-8

isocryptoxanthin

Conditions
ConditionsYield
With sodium tetrahydroborate
With sodium tetrahydroborate
With lithium aluminium tetrahydride In diethyl ether
echinenone
432-68-8

echinenone

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-2-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enone

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-2-enyl)-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-cyclohex-2-enone

Conditions
ConditionsYield
With trifluoroacetic acid
echinenone
432-68-8

echinenone

13-cis-β,β-caroten-4-ol

13-cis-β,β-caroten-4-ol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: NaBH4
2: CF3COOH / CHCl3 / -20 °C
3: H2O / acetone / -10 °C
View Scheme
echinenone
432-68-8

echinenone

3,4-didehydro-β,β-carotene
864-87-9

3,4-didehydro-β,β-carotene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: NaBH4
2: aq. HCl / CHCl3 / 0.33 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: sodium borohydride
2: HCl / CHCl3 / 20 °C
View Scheme
echinenone
432-68-8

echinenone

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

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

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: NaBH4
2: aq. HCl / CHCl3 / 0.33 h / 20 °C
View Scheme
echinenone
432-68-8

echinenone

β-carotene cation radical
57793-67-6

β-carotene cation radical

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: NaBH4
2: CF3COOH / CHCl3 / -20 °C
View Scheme
echinenone
432-68-8

echinenone

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

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium borohydride
2: HCl / CHCl3 / 20 °C
View Scheme
echinenone
432-68-8

echinenone

C40H55(1+)

C40H55(1+)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium borohydride
2: trifluoroacetic acid / CH2Cl2 / -20 °C
View Scheme
echinenone
432-68-8

echinenone

C40H55(1+)

C40H55(1+)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium borohydride
2: trifluoroacetic acid / CH2Cl2 / -20 °C
View Scheme

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