Our advantage Free sample and unconditional assume respons 100% natural porduct, without any synthetize ingredient Manufacturer direct supply, provide OEM, R&D service ISO/HACCP/KOSHER/GMP/FDA L
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
Cas:481-74-3
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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
Cas:481-74-3
Min.Order:1 Gram
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inquiryThe 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
Specifications CAS No.: 474-25-9 Other Names: Chenodiol; CDCA MF: C24H40O4 EINECS No.: 207-481-8 Place of Origin: Shaanxi, China (Ma
Cas:481-74-3
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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
Cas:481-74-3
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inquiryShanghai 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
Cas:481-74-3
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inquiryName:Chrysophanol Alias: Rhubarb acid, Chrysophanol,3-methylchrysazin, 8-dihydroxy-3-methylanthraquinone English Name:Chrysophanol Molecular formula:C15H10O4 Molecular weight:254.242 Packaging Specification: 25kg/drum high purity 99%min stoc
Cas:481-74-3
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryAbout Product Technical Details CAS: 481-74-3 MF: C15H10O4 MW: 254.24 EINECS: 207-572-2 Product Categories: Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals;
Cas:481-74-3
Min.Order:1 Kilogram
FOB Price: $1.0 / 3.0
Type:Lab/Research institutions
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 manufactu
Cas:481-74-3
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FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryOur company was built in 2009 with an ISO certificate.In the past 6 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
Cas:481-74-3
Min.Order:1 Metric Ton
FOB Price: $500.0
Type:Lab/Research institutions
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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Min.Order:10 Gram
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Type:Trading Company
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Cas:481-74-3
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiry1.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
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Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryWe 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
Cas:481-74-3
Min.Order:10 Gram
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Type:Trading Company
inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:Yellow powder Storage:Refer to COA / MSDS Packa
Cas:481-74-3
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryOur 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
Cas:481-74-3
Min.Order:1 Kilogram
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Type:Trading Company
inquiryHello, 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
Cas:481-74-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHenan 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
Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
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Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHangzhou 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
Cas:481-74-3
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryJ&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
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
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
Cas:481-74-3
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe 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
Cas:481-74-3
Min.Order:100 Gram
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Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:481-74-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryGMP 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,
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
Cas:481-74-3
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryHubei 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)
Cas:481-74-3
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiry8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
Chrysophanol
Conditions | Yield |
---|---|
With hydrogen bromide In acetic acid for 5h; Heating; | 100% |
With hydrogen bromide In acetic acid for 5h; Heating; | 100% |
With hydrogen bromide; acetic acid Yield given; |
Chrysophanol 8-O-beta-D-glucopyranoside
Chrysophanol
Conditions | Yield |
---|---|
With acetate buffer; β-glucosidase In water at 37℃; for 16h; pH=5.0; | 98% |
(1R,4aS,9aR)-9a-Chloro-8-hydroxy-1-methoxy-3-methyl-1-trimethylsilanyloxy-1,4,4a,9a-tetrahydro-anthraquinone
A
Chrysophanol
B
8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
1,8-diazabicyclo[5.4.0]undec-7-ene In methanol; dichloromethane Ambient temperature; | A n/a B 96% |
sodium acetate In methanol; dichloromethane Ambient temperature; Yield given. Yields of byproduct given; |
1,8-dimethoxy-3-methyl-9,10-anthraquinone
Chrysophanol
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid for 0.5h; Heating; | 94% |
With hydrogen bromide In acetic acid for 0.5h; Heating; | 94% |
With nicotinic acid; sulfuric acid; boric acid at 120℃; for 2h; | 45% |
Conditions | Yield |
---|---|
With boron tribromide In dichloromethane at -50℃; for 7h; | 93% |
With aluminium trichloride In dichloromethane at 20℃; | 91% |
With hydrogen bromide; acetic acid | |
With hydrogen bromide for 0.5h; |
3-Bromojuglone
(1E,3Z)-1-Methoxy-3-methyl-1,4-bis-trimethylsilanyloxy-buta-1,3-diene
Chrysophanol
Conditions | Yield |
---|---|
Stage #1: 3-Bromojuglone; (1E,3Z)-1-Methoxy-3-methyl-1,4-bis-trimethylsilanyloxy-buta-1,3-diene In benzene for 5h; Heating; Stage #2: With hydrogenchloride In tetrahydrofuran for 2h; Heating; Further stages.; | 79% |
1,4,4a,9a-Tetrahydro-1,8-dihydroxy-3-methyl-9,10-anthrachinon
Chrysophanol
Conditions | Yield |
---|---|
With pyridinium chlorochromate In dichloromethane for 4h; | 76% |
With pyridinium chlorochromate |
1,6,8-trihydroxy-3-methyl-9,10-anthraquinone
A
Chrysophanol
B
(R)-3,4-dihydro-3,8,9,10-tetrahydroxy-6-methylanthracen-1(2H)-one
Conditions | Yield |
---|---|
With glucose dehydrogenase; sodium dithionite; β-D-glucose; Talaromyces islandicus anthrol reductase; nicotinamide adenine dinucleotide phosphate In aq. phosphate buffer; dimethyl sulfoxide for 14h; pH=7; Inert atmosphere; Enzymatic reaction; stereoselective reaction; | A 12% B 74% |
With glucose dehydrogenase; sodium dithionite; D-glucose; anthrol reductase of Talaromyces islandicus WF-38-12; NADP In aq. buffer for 14h; pH=7; Catalytic behavior; Kinetics; pH-value; Enzymatic reaction; stereoselective reaction; | A n/a B 74% |
Stage #1: 1,6,8-trihydroxy-3-methyl-9,10-anthraquinone With sodium dithionite Stage #2: With N-terminally His-tagged 17β-hydroxysteroid dehydrogenase from the filamentous fungus Curvularia lunata (teleomorph Cochlioboluslunatus) cloned into pET19b; NADPH Enzymatic reaction; | A 8% B 32% |
With sodium dithionite; D-glucose; his-tagged AflM from Aspergillus parasiticus; C21H27N7O17P3(1-)*Na(1+) In aq. phosphate buffer at 20℃; for 24h; pH=7; Inert atmosphere; Enzymatic reaction; | A 8 %Spectr. B 20% |
(R)-3,4-dihydro-3,8,9,10-tetrahydroxy-6-methylanthracen-1(2H)-one
A
Chrysophanol
B
1,6,8-trihydroxy-3-methyl-9,10-anthraquinone
C
(−)-flavoskyrin
Conditions | Yield |
---|---|
With oxygen In aq. phosphate buffer; acetonitrile at 10℃; for 10h; pH=6; Solvent; | A 10% B n/a C 72% |
(R)-3,4-dihydro-3,8,9,10-tetrahydroxy-6-methylanthracen-1(2H)-one
A
Chrysophanol
Conditions | Yield |
---|---|
With lead(IV) tetraacetate; acetic acid at 0 - 20℃; for 0.333333h; | A 8% B 68% |
3-chlorojuglone
(E)-((1-methoxy-3-methylbuta-1,3-dien-1-yl)oxy)trimethylsilane
A
Chrysophanol
B
8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
In neat (no solvent) Ambient temperature; | A 63% B 4% |
3-chlorojuglone
(E)-((1-methoxy-3-methylbuta-1,3-dien-1-yl)oxy)trimethylsilane
A
Chrysophanol
B
8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
C
methyl 3-methyl-4-<3-chloro-5-hydroxynaphthoquinonyl-2>-2-butenoate
Conditions | Yield |
---|---|
In neat (no solvent) Product distribution; Ambient temperature; different solvent, reaction times and temperatures; | A 63% B 4% C n/a |
Conditions | Yield |
---|---|
With sodium dithionite In sodium hydroxide at 70℃; for 1h; | A 61% B n/a |
1,8-dihydroxy-3-hydroxymethyl-9,10-anthracenedione
acetic acid
A
Chrysophanol
B
(1,8-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-3-yl)methyl acetate
Conditions | Yield |
---|---|
With tin(ll) chloride In hydrogenchloride at 120℃; for 1h; | A 25% B 52% |
(R)-3,4-dihydro-3,8,9,10-tetrahydroxy-6-methylanthracen-1(2H)-one
A
Chrysophanol
Conditions | Yield |
---|---|
With lead(IV) tetraacetate; acetic acid at 20℃; for 0.333333h; | A 21% B 41% C 35% |
3-chlorojuglone
(E)-((1-methoxy-3-methylbuta-1,3-dien-1-yl)oxy)trimethylsilane
A
Chrysophanol
B
methyl 3-methyl-4-<3-chloro-5-hydroxynaphthoquinonyl-2>-2-butenoate
Conditions | Yield |
---|---|
In tetrahydrofuran -30 deg C, 30 min, -30 deg C to RT, 1h; | A 22% B 14% |
manganese dioxide
(E)-1-acetoxy-3-methyl-1,3-butadiene
5-hydroxynaphtho-1,4-quinone
Chrysophanol
Conditions | Yield |
---|---|
With acetic anhydride; hydroquinone In sodium carbonate; toluene | 9% |
1,8-diacetoxy-3-methyl-anthraquinone
Chrysophanol
Conditions | Yield |
---|---|
With potassium hydroxide |
Conditions | Yield |
---|---|
With chromium(VI) oxide; acetic acid | |
Product distribution; Mechanism; biotransformation by emodinanthrone oxygenase from Aspergillus terreus: relative activity; |
cephalanone F
Chrysophanol
Conditions | Yield |
---|---|
With aluminium trichloride; sodium chloride at 175℃; | |
With sulfuric acid; boric acid |
8-amino-1-hydroxy-3-methyl-anthraquinone
Chrysophanol
Conditions | Yield |
---|---|
With sulfuric acid Diazotization.und Erwaermen der Reaktions-Loesung auf 120grad; | |
With sulfuric acid Diazotization.und Erwaermen der Reaktions-Loesung auf 120grad; |
(−)-flavoskyrin
Chrysophanol
Conditions | Yield |
---|---|
at 210℃; |
Conditions | Yield |
---|---|
With mercaptoethyl alcohol; cell-free extract from Pyenochaeta terrestris; ATP; NADPH; iron(II) chloride at 25℃; for 5h; | |
With glycerol; 2-hydroxyethanethiol; NADPH; emodin deoxygenase In water at 25℃; Equilibrium constant; Kinetics; effect of ATP, dithiothreitol, p-hydroxymercuribenzoic acid, diamide, N-ethylmaleimide, Fe2+, or Cd2+ on catalyst activity; | |
Multi-step reaction with 3 steps 1.1: sodium tetrahydroborate; sodium dithionite / water; dimethyl sulfoxide / 0.17 h / 20 °C / Inert atmosphere; Green chemistry 1.2: 20 °C / Inert atmosphere; Green chemistry 2.1: Chiralcel OD-H / hexane; isopropyl alcohol / 20 °C / Resolution of racemate 3.1: (S)-(+)-2-methoxy-2-trifluoromethyl-2-phenylacetyl chloride; pyridine / 24 h / 20 °C View Scheme |
5-hydroxynaphtho-1,4-quinone
1-methoxy-3-methyl-1-trimethylsilyloxy-1,3-butadiene
A
Chrysophanol
B
8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone 1) CH2Cl2, 6 h, 2) 2 h; Yield given. Multistep reaction. Yields of byproduct given; |
5-hydroxynaphtho-1,4-quinone
3-methyl-1-triethylsilyloxy-1-trimethylsilyloxy-1,3-butadiene
Chrysophanol
Conditions | Yield |
---|---|
With hydrogenchloride 1.) toluene, 80-100 deg C, 12 h; 2.) MeOH, rt., 10 h; Yield given. Multistep reaction; |
emodin
Chrysophanol
Conditions | Yield |
---|---|
With emodin deoxygenase; NADPH Mechanism; rate of conversion; |
(1R,4aR,9aS)-8-Hydroxy-1-methoxy-3-methyl-1-trimethylsilanyloxy-1,4,4a,9a-tetrahydro-anthraquinone
A
Chrysophanol
B
8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
With hydrogenchloride In methanol; dichloromethane Ambient temperature; Yield given. Yields of byproduct given; | |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In dichloromethane Ambient temperature; Yield given. Yields of byproduct given; |
(+)-knipholone
A
Chrysophanol
B
4,6-dihydroxy-2-methoxyacetophenone
Conditions | Yield |
---|---|
With sodium dithionate; sodium hydroxide at 80℃; for 1h; |
Chrysophanol
Conditions | Yield |
---|---|
With potassium hydroxide In methanol for 72h; | 6 mg |
Conditions | Yield |
---|---|
With potassium hydroxide; sodium dithionite In methanol |
Conditions | Yield |
---|---|
With sulfuric acid for 0.5h; Ambient temperature; | 100% |
With sulfuric acid | |
With sodium acetate |
Conditions | Yield |
---|---|
Stage #1: Chrysophanol With chromium(VI) oxide In acetic anhydride; acetic acid at 65℃; for 8h; Stage #2: With sodium carbonate In water | 98% |
Stage #1: Chrysophanol With pyridine at 20℃; Stage #2: With chromium(VI) oxide; acetic anhydride; acetic acid In water at 45 - 65℃; for 8h; | 98% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 70℃; for 20h; | 98% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 16h; Heating; | 96% |
With potassium carbonate In acetone for 6h; Heating; | 89% |
With potassium carbonate at 75℃; for 12h; | 65% |
With potassium hydroxide | |
With potassium carbonate In acetone for 10h; Heating; Yield given; |
Chrysophanol
Conditions | Yield |
---|---|
With phosphorus pentachloride; water In benzene Rearrangement; phosphorylation; hydrolysis; | 95% |
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid; tin(ll) chloride at 80℃; for 5h; | 94% |
With hydrogenchloride; tin; acetic acid | |
With ammonia; zinc | |
With hydrogen iodide |
Chrysophanol
iodomethylbenzene
1,8-bis(benzyloxy)-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 94% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 89% |
With silver(l) oxide |
Chrysophanol
1-iodo-4-(iodomethyl)benzene
1,8-bis(4-iodobenzyloxy)-3-methylanthracene-9, 10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 87% |
Chrysophanol
1-iodo-butane
1,8-dibutoxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 84% |
Chrysophanol
1-iodo-propane
1,8-dipropyloxy-3-methylanthracene-9,10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 82% |
Chrysophanol
1-(iodomethyl)-2-bromobenzene
1,8-bis(2-bromobenzyloxy)-3-methylanthracene-9, 10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 80% |
Chrysophanol
allyl iodid
1,8-bis(allyloxy)-3-methylanthracene-9, 10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 80% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 73% |
With silver(l) oxide |
Conditions | Yield |
---|---|
Stage #1: Chrysophanol With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane for 6h; Heating; Stage #2: With water; calcium carbonate In 1,4-dioxane at 120℃; for 7h; | 71% |
Multi-step reaction with 2 steps 1: NBS; (PhCO2)2 / CCl4 / 6 h / Heating 2: 756 mg / H2O; CaCO3 / dioxane / 7 h / 120 °C View Scheme |
Chrysophanol
1-chloro-3-(iodomethyl)benzene
1,8-bis(3-chlorobenzyloxy)-3-methylanthracene-9, 10-dione
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 12h; Reflux; | 70% |
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