Astaxanthin 98% 10% 5% 1% CAS Number: 472-61-7 Specification: USP/BP/EP/FCC Certification: GMP/DMF/HACCP/HALAL/KOSHER Expiry Time: 2 Years Packing: 1kg/Tin, 5kg/Tin, 20kg/Drum, 25kg/Drum, 50kg/Drum, 200kg/Drum, 1MT/Drum Storage: Store i
Superiority Kono 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
1. Rich in Natural Astaxanthin: Astaxanthin is a potent antioxidant, approximately 6,000 times stronger than vitamin C. It quickly enhances the vitality of shrimp and crabs, with noticeable effects in 1-2 days. 2. Neutralizes Harmful Free Radicals:
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inquiry1.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
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inquiryHANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on the marketing & distribution, thinkchem specializes in exp
Astaxanthin Powder Specification: Name: Astaxanthin Powder Assay: 1%--8% Identification Standardization Aspect
Pure Haematococcus Pluvialis Extract Powder Astaxanthin 10% Feed Grade Astaxanthin Professional Factory We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of content and proportion
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inquiry1.Free sample(10-20g or enough to detection) and Unconditional assume respons 2.100% Natural porduct, without any synthetize ingredient 3.Manufacturer direct supply, provide OEM, R&D service 4.ISO/HACCP/KOSHER/GMP/FDA 5.Leading plant ex
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inquiryTrade Assurance Get full protection for your orders 100% Product quality protection 100% On-time shipment protection 100% Payment protection Appearance:red powder Storage:Store in a cool dry place, avoiding sunlight directly Package:aluminium foil
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inquiryAs 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
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inquirySinoway Industrial co., ltd. was established in 1987 in Xiamen, China, and now has been a leading group specialized in research, development, custom manufacturing and trading of pharmaceutical intermediates, APIs, health and food supplements, cosmeti
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inquiryHebei 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
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; ...... Appearance:Dark red powder Storage:-20°C Package:1kg/foil bag; 25kg/fibe
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inquiryItems Standard Result Assay 98%min ----------------------------------------------------------------------------------------------
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inquirySales: 1.24hours to reply your E-mail 2.Market information trend share with customers Suggestion for purchase decision Reputation: 1.Implementing contract terms strictly 2.Timely solve any discrepancy or goods claims Take our responsibility for loss
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inquiry1. 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
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inquiryOur Advantages: 1. Free samples and unconditional hypothetical responses. 2.100% natural product, without any synthetic ingredients. 3. Direct sales from manufacturers, providing OEM and R&D services. 4. Complete certificates. 5. China's lead
Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
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
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inquiryColorcom 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
Product Name: Astaxanthin Synonyms: 3,3'-DIHYDROXY-B,B-CAROTENE-4,4'-DIONE;3,3-DIHYDROXY-B,B-CAROTENE-4,4-DIONE;3,3'-DIHYDROXY-BETA,BETA-CAROTENE-4,4'-DIONE;ASTAXANTHIN;AXN;Astazine 5%;(3S,3’S)-3,3’-Dihydroxy-.beta.,.be
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inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
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inquiryWITH 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
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inquiryAssay by HPLC Natural : 2% 2.5% 3%by HPLC 2% 2.5% 3% by UV Synthetic: 2% 2.5% 3% 3.5% 4% 5% by HPLC 2% 2.5% 3% 3.5% 4% 5% by UV Astaxanthin Oil: 5% 8% 10% by HPLC 5% 8% 10% b
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inquiryAppearance:Drak-purple Storage:ln stock Package:25kg/Barrel Application:Enhance immunity, anti-oxidation, anti-inflammatory Transportation:Express/Sea/Air Port:Any port of china
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:dark red powder Storage:Store in sealed containers at cool &
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inquiryHanways 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
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inquiry1,In No Less five years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem specialized in APIs, chemical intermediate
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inquiry(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial
A
(3S,3'S)-astaxanthin
B
(3R,3'S)-3,3′-dihydroxy-β,β′-caroten-4,4′-dione
Conditions | Yield |
---|---|
With sodium methylate In methanol at 0 - 25℃; for 4h; | A 94.6% B 4.2 % Chromat. |
In various solvent(s) for 20h; Heating; | A 97.7 % Chromat. B 2.1 % Chromat. |
Conditions | Yield |
---|---|
Stage #1: C12H20O4; [(4E)-5-(4-hydroxy-2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-3-methyl-2,4-pentadienyl]-triphenylphosphonium bromide With sodium methylate In methanol at 0℃; for 2h; Wittig Reaction; Stage #2: With acetic acid In methanol; water at 20 - 75℃; for 20h; Heating / reflux; | 83% |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With sodium hydroxide In methanol; dichloromethane for 1.16667h; Ambient temperature; | 73% |
Conditions | Yield |
---|---|
70.7% |
Conditions | Yield |
---|---|
With sodium hydride In dichloromethane; isopropyl alcohol |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 40℃; |
3,4,3',4'-tetrahydroxy-β,β-carotene
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: aq. HBr / CH2Cl2 / 0.17 h / 0 °C 3: 94.6 percent / NaOMe / methanol / 4 h / 0 - 25 °C View Scheme |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 94.6 percent / NaOMe / methanol / 4 h / 0 - 25 °C View Scheme |
3,3'-dihydroxy-β,β-carotene-4,4'-dione
A
(3S,3'S)-astaxanthin
B
(3R,3'R)-3,3′-dihydroxy-β,β′-caroten-4,4′-dione
C
(3R,3'S)-3,3′-dihydroxy-β,β′-caroten-4,4′-dione
Conditions | Yield |
---|---|
Resolution of racemate; |
(S)-2,7,11-trimethyl-13-(4-hydroxy-2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4,6,8,10,12-tridecahexaen-1-al
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
In ethanol for 3h; Heating / reflux; |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With daidzein dianion In methanol; chloroform at 25℃; Thermodynamic data; Kinetics; Reagent/catalyst; |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: E-2 / aq. phosphate buffer; acetone / 1 h / 20 - 30 °C / pH 7 / Large scale; Enzymatic reaction 2.1: pyridinium p-toluenesulfonate / toluene / 0.5 h / -5 - 5 °C / Large scale 3.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 4.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 5.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 5.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: pyridinium p-toluenesulfonate / toluene / 0.5 h / -5 - 5 °C / Large scale 2.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 3.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 4.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 4.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 2.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 3.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 3.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 2.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 2.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
Conditions | Yield |
---|---|
Stage #1: 1-(5-bromo-3-methyl-1,3-pentadienyl)-(4S)-4-hydroxy-3-oxo-2,6,6-trimethyl-1-cyclohexene With ethyloxirane; triphenylphosphine In ethyl acetate at 0 - 30℃; for 24h; Large scale; Stage #2: (2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial With ethyloxirane; 2,6-di-tert-butyl-4-methyl-phenol In isopropyl alcohol for 30h; Reflux; Inert atmosphere; Large scale; | 1.53 kg |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: LAY 400-AF / aq. phosphate buffer; toluene / 24 h / 37 °C / pH 7 / Enzymatic reaction 1.2: 3 h / 50 °C 2.1: hydrogenchloride / toluene; methanol; water / 2 h / 20 - 30 °C 3.1: E-2 / aq. phosphate buffer; acetone / 1 h / 20 - 30 °C / pH 7 / Large scale; Enzymatic reaction 4.1: pyridinium p-toluenesulfonate / toluene / 0.5 h / -5 - 5 °C / Large scale 5.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 6.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 7.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 7.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme | |
Multi-step reaction with 7 steps 1.1: LAY 400-AF / aq. phosphate buffer; toluene / 24 h / 37 °C / pH 7 / Enzymatic reaction 2.1: hydrogenchloride / toluene; methanol; water / 2 h / 20 - 30 °C 3.1: E-2 / aq. phosphate buffer; acetone / 1 h / 20 - 30 °C / pH 7 / Large scale; Enzymatic reaction 4.1: pyridinium p-toluenesulfonate / toluene / 0.5 h / -5 - 5 °C / Large scale 5.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 6.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 7.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 7.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: hydrogenchloride / toluene; methanol; water / 2 h / 20 - 30 °C 2.1: E-2 / aq. phosphate buffer; acetone / 1 h / 20 - 30 °C / pH 7 / Large scale; Enzymatic reaction 3.1: pyridinium p-toluenesulfonate / toluene / 0.5 h / -5 - 5 °C / Large scale 4.1: tetrahydrofuran / 2 h / -75 - -55 °C / Large scale 5.1: hydrogen bromide / dichloromethane / 0.5 h / -21 - -11 °C / Large scale 6.1: triphenylphosphine; ethyloxirane / ethyl acetate / 24 h / 0 - 30 °C / Large scale 6.2: 30 h / Reflux; Inert atmosphere; Large scale View Scheme |
Conditions | Yield |
---|---|
Stage #1: canthaxanthin With iodosylbenzene; sodium hydroxide In methanol at 10 - 20℃; for 12.5h; Inert atmosphere; Stage #2: With sulfuric acid In water at 20℃; for 5h; Reagent/catalyst; Temperature; Solvent; | 4.48 g |
Conditions | Yield |
---|---|
With pyridine In dichloromethane for 5h; Concentration; | A 92.48% B 0.63% |
Conditions | Yield |
---|---|
Stage #1: (3S,3'S)-astaxanthin; C16H23ClO3Si With pyridine In dichloromethane at 0 - 20℃; Inert atmosphere; Stage #2: With caesium carbonate In water; N,N-dimethyl-formamide for 2h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; | 80% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; Concentration; Reagent/catalyst; Temperature; Solvent; | 73% |
With pyridine |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; | 73% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; | 69% |
Conditions | Yield |
---|---|
With Novozyme 435 In methanol; toluene at 37℃; for 6h; Darkness; Enzymatic reaction; | 59% |
Conditions | Yield |
---|---|
With Novozyme 435 In methanol; toluene at 37℃; for 6h; Darkness; Enzymatic reaction; | 58% |
Conditions | Yield |
---|---|
With Novozyme 435 In methanol; toluene at 37℃; for 6h; Darkness; Enzymatic reaction; | 57% |
Conditions | Yield |
---|---|
Stage #1: (3S,3'S)-astaxanthin With n-butyllithium In tetrahydrofuran at -70℃; for 0.25h; Stage #2: 4-Nitrophenyl chloroformate In tetrahydrofuran at 20℃; for 8h; | 56.1% |
(3S,3'S)-astaxanthin
MANDELIC ACID
Conditions | Yield |
---|---|
With Novozyme 435 In methanol; toluene at 37℃; for 6h; Darkness; Enzymatic reaction; | 55% |
(3S,3'S)-astaxanthin
(3R,3'R)-3,3′-dihydroxy-β,β′-caroten-4,4′-dione
(3R,3'S)-3,3′-dihydroxy-β,β′-caroten-4,4′-dione
N-(all-trans-Retinoyl)-imidazole
A
astacene
Conditions | Yield |
---|---|
With pyridine; sodium hydride at 20℃; for 3h; | A 50% B 5% |
β-1-bromo-2,3,4,6-tetra-O-benzoyl-α-D-glucopyranoside
(3S,3'S)-astaxanthin
C108H104O22
Conditions | Yield |
---|---|
With 4 A molecular sieve; silver trifluoromethanesulfonate In dichloromethane at 0℃; for 2h; | 31% |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With iodine-doped titanium dioxide In ethyl acetate at 70℃; for 2h; Reagent/catalyst; Temperature; Solvent; | A 22.7% B 16.9% |
In acetone; Petroleum ether at 70℃; for 12h; | |
With I-TiO2 In ethyl acetate at 70℃; for 2h; |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 20℃; for 48h; | A 10.9% B 15.7% |
(3S,3'S)-astaxanthin
Conditions | Yield |
---|---|
With hydrogen; Lindlar's catalyst In dichloromethane |
(3S,3'S)-astaxanthin
(-)-methoxytrifluoromethylphenylacetyl chloride
C60H66F6O8
Conditions | Yield |
---|---|
With pyridine at 0℃; for 0.75h; determination of enantiomeric composition of partly racemized carotenols by converting them in to diastereomeric esters, HPLC and NMR (in the presence of Eu(fod)3 shift reagent) analysis; |
Conditions | Yield |
---|---|
With pyridine at 0℃; for 0.666667h; |
(3S,3'S)-astaxanthin
3,4,3',4'-tetrahydroxy-β,β-carotene
Conditions | Yield |
---|---|
With sodium tetrahydroborate In ethanol |
Conditions | Yield |
---|---|
With pyridine; chlorosulfonic acid for 2.5h; Ambient temperature; Yield given; |
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