DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome 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
Cas:473-98-3
Min.Order:1 Metric Ton
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Type:Manufacturers
inquirySuperiority pioneerbiotech 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 q
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
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
Cas:473-98-3
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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:473-98-3
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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
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
CHENGDU YANXI is a comprehensive manufacturer and an international distribution of products throughout the world. Specialized in Scrap metal, Chemical raw materials, Paper products and color industry. We aim to become leading position in global dis
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Trading Company
inquiryFerrous fumarate Basic information Product Name: Ferrous fumarate Synonyms: IRON(II) FUMARATE;IRON(+2)FUMARATE;IRON FUMARATE;FERROUS FUMARATE;FERROUS FUMERATE;2-But
Cas:473-98-3
Min.Order:1 Kilogram
Negotiable
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:473-98-3
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
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
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1. 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 ♦ W
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $289.0 / 499.0
Type:Trading Company
inquiryProduct Name: Betulin Part used:Bark specification: 70% 90% 95% 98% CAS No: 473-98-3 Molecular formula: C30H50O2 Molecular weight: 442.7 Appearance: white powder Storage:Store in cool and dry place, away from sun light. Pa
Appearance:White powder Storage:Room temperature Package:1kg/bag Application:Used in food, cosmetics and medicine industries Transportation:Express/Sea/Air Port:Any port in china
Cas:473-98-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
Cas:473-98-3
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:473-98-3
Min.Order:10 Gram
FOB Price: $3.5
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:white powder/ Refer to COA Storage:Refer to COA
Cas:473-98-3
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiry1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Storage:Under Inert Atmosphere Package:25kg/drum Application:Application: Functional food, cosmetics and pharmaceutical industries. Trans
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $170.0
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 present
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $210.0 / 230.0
Type:Trading Company
inquiryBetulin CAS:473-98-3 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 intermediates, ster
Cas:473-98-3
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
Cas:473-98-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
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
Cas:473-98-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryShanghai SOYOUNG onsite assessment conducted by Bureau Veritas commissioned at June 2018. Assessed Supplier of Shanghai SOYOUNG is a faithful and professional supplier of health raw materials in pharmacy, food, cosmetic and other fields for many ye
Cas:473-98-3
Min.Order:25 Kilogram
FOB Price: $230.0 / 350.0
Type:Lab/Research institutions
inquiryBetulin Basic information Extract Physical and Chemical Properties Extraction method Identification method Physiological functions Storage References
Cas:473-98-3
Min.Order:1 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiryChengdu 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
J&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
A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:473-98-3
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With potassium hydroxide In ethanol for 2h; Heating; | 96% |
With potassium hydroxide; ethanol In toluene for 2h; Heating / reflux; | 93% |
With sodium hydroxide In tetrahydrofuran; methanol at 20℃; for 168000h; |
betulin
Conditions | Yield |
---|---|
With montmorillonite K-10 In methanol at 40 - 50℃; for 2h; | 95% |
betulin
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol; toluene at 60℃; for 3h; | 94% |
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In tetrahydrofuran for 4h; Heating; | A 90% B 5% |
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In tetrahydrofuran for 5h; Reflux; Inert atmosphere; Sealed tube; | 90% |
Multi-step reaction with 2 steps 1: 1 g / diethyl ether; CH2Cl2 / 0 °C 2: 0.65 g / LiAlH4 / tetrahydrofuran / 3 h / Heating View Scheme | |
Multi-step reaction with 2 steps 2: LAH View Scheme |
Conditions | Yield |
---|---|
With calcium hydroxide In methanol; chloroform for 24h; Ambient temperature; | A 10% B 89% |
With magnesium methanolate In tetrahydrofuran; methanol for 72h; Ambient temperature; | A 14% B 81% |
With sodium methylate In tetrahydrofuran; methanol for 48h; Ambient temperature; | A 53.1% B 43.4% |
methyl betulinate
betulin
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In tetrahydrofuran at 10 - 20℃; | 76% |
With lithium aluminium tetrahydride | |
With lithium aluminium tetrahydride In tetrahydrofuran; diethyl ether for 3h; Heating; | |
With lithium aluminium tetrahydride In tetrahydrofuran for 3h; Heating; | 0.65 g |
betulinic aldehyde
acrylic acid methyl ester
A
(R)-4-[3β-hydroxy-28-norlup-20(29)-en-17β-yl]-γ-butyrolactone
B
betulin
Conditions | Yield |
---|---|
With samarium; 1,2-Diiodoethane; tert-butyl alcohol In tetrahydrofuran at 0℃; Inert atmosphere; | A 47% B n/a |
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide; L-Selectride 1.) THF, -20 deg C, min, 2.) THF, 1 h; Yield given. Multistep reaction. Yields of byproduct given; |
betulin
Conditions | Yield |
---|---|
With tetrahydrofuran; lithium aluminium tetrahydride; diethyl ether |
Conditions | Yield |
---|---|
With potassium hydroxide for 3h; Heating; |
3β-O-cis-feruloylbetulin
betulin
Conditions | Yield |
---|---|
With potassium hydroxide In methanol at 65℃; for 10h; |
28-acetoxybetulin
acrylonitrile
A
3-[3β-hydroxylup-20(29)-en-28-yloxy]propanenitrile
B
betulin
C
3β-(2-cyanoethoxy)lup-20(29)-en-28-yl acetate
D
3β,28-di(2-cyanoethoxy)lup-20(29)-ene
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; potassium hydroxide In 1,4-dioxane; water at 20℃; for 24h; Inert atmosphere; | A 5 %Chromat. B 22 %Chromat. C 64 %Chromat. D 9 %Chromat. |
betulin
Conditions | Yield |
---|---|
With methanol; potassium hydroxide for 2h; |
betulin
Conditions | Yield |
---|---|
With potassium hydroxide at 20℃; for 12h; |
betulin
lupane-3β,28-diol
Conditions | Yield |
---|---|
With hydrogen; 10percent Pd/C In tetrahydrofuran; methanol under 2068.65 Torr; | 100% |
With hydrogen; palladium 10% on activated carbon In methanol; dichloromethane under 1810.07 Torr; for 16h; | 100% |
With hydrogen; platinum(IV) oxide In methanol; chloroform for 8h; | 99% |
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; for 1h; | 100% |
With dmap In tetrahydrofuran at 20℃; | 100% |
montmorillonite acid clay for 0.0333333h; microwave irradiation; | 99% |
betulin
allobetulin
Conditions | Yield |
---|---|
Montmorillonite KSF In dichloromethane for 3.5h; Heating; | 99% |
With trifluoroacetic acid In chloroform at 22℃; for 0.133333h; | 97% |
With amberlyst 15 In chloroform Reflux; | 96% |
Conditions | Yield |
---|---|
With bithmuth(III) triflate hydrate In dichloromethane for 40h; Reflux; | 98% |
With kieselguhr; xylene | |
Multi-step reaction with 2 steps 1: 99 percent / montmorillonite KSF / CH2Cl2 / 3.5 h / Heating 2: 65 percent / montmorillonite K10 / cyclohexane / 2.5 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 68 percent / PCl5 / petroleum ether / 1.) 0 deg C, 30 min, 2.) r.t., 45 min 2: 61 percent / montmorillonite K10 / CH2Cl2 / 40 °C View Scheme |
Conditions | Yield |
---|---|
With dmap In N,N-dimethyl-formamide at 60℃; | 98% |
With pyridine; dmap at 80℃; | 85% |
With pyridine; dmap In N,N-dimethyl-formamide Reflux; regioselective reaction; | 76% |
betulin
2,4,6,8-tetraacetyl-2,4,6,8-tetraazabicyclo<3,3,0>octan-3,7-dione
betulin diacetate
Conditions | Yield |
---|---|
With trifluoroacetic acid In chloroform at 70℃; for 1h; | 98% |
Conditions | Yield |
---|---|
With [bis(acetoxy)iodo]benzene; 1,5-dimethyl-9-azanoradamantane N-oxyl In dichloromethane at 25℃; for 0.75h; Reagent/catalyst; Inert atmosphere; | A 51% B 97% |
With pyridinium chlorochromate In dichloromethane at 20℃; for 1.5h; | A 82% B 17% |
With 1‐methyl‐2‐azaadamantane‐N‐oxyl; [bis(acetoxy)iodo]benzene In dichloromethane at 20℃; for 2h; Catalytic behavior; Reagent/catalyst; | A 51% B 49% |
betulin
betulinic aldehyde
Conditions | Yield |
---|---|
With N-chloro-succinimide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutyl-ammonium chloride; sodium hydrogencarbonate; potassium carbonate In tetrahydrofuran; water at 20℃; | 97% |
With 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium chlorite; tetrabutylammomium bromide; sodium hypochlorite In phosphate buffer; dichloromethane at 35℃; | 92% |
With 2,2,6,6-tetramethyl-piperidine-N-oxyl; tetrabutylammomium bromide; sodium hypochlorite In phosphate buffer; dichloromethane at 30℃; pH=6.8; | 87% |
Conditions | Yield |
---|---|
With pyridine at 0 - 20℃; for 3h; | 97% |
With 1H-imidazole In dichloromethane at 25℃; for 3h; | |
With 1H-imidazole In dichloromethane at 0℃; |
Conditions | Yield |
---|---|
With N,N-dimethyl-aniline In benzene for 50h; Reflux; | 97% |
Conditions | Yield |
---|---|
With pyridine for 15h; Addition; Heating; | 96% |
With pyridine; dmap for 30h; Heating; | 76% |
Stage #1: phthalic anhydride; betulin With pyridine; dmap for 37h; Heating / reflux; Stage #2: With hydrogenchloride In water; ethyl acetate | 76% |
With dmap for 24h; |
betulin
Conditions | Yield |
---|---|
With bithmuth(III) triflate hydrate In dichloromethane for 8h; Reflux; | 96% |
3,4-dihydro-2H-pyran
betulin
3-hydroxy-28-[(tetrahydro-2H-pyran-2-yl)oxy]lup-20(29)-ene
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In dichloromethane for 72h; Ambient temperature; | 95% |
With pyridinium p-toluenesulfonate In dichloromethane at 20℃; for 20h; | 80% |
With pyridinium p-toluenesulfonate In dichloromethane at 20℃; for 72h; Inert atmosphere; | 57% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; Steglich Esterification; | 95% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 24h; | 80% |
Conditions | Yield |
---|---|
With potassium hydroxide In dimethyl sulfoxide at 80℃; for 2.5h; | 95% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane for 24h; regioselective reaction; | 95% |
Conditions | Yield |
---|---|
With dmap In pyridine at 95℃; | 94% |
With pyridine; dmap at 95℃; |
betulin
Conditions | Yield |
---|---|
Stage #1: betulin With pyridine; trichlorophosphate In 1,4-dioxane at 10 - 20℃; for 24h; Stage #2: With water In 1,4-dioxane | 94% |
With pyridine; trichlorophosphate In acetone at 0℃; for 1h; | 69% |
betulin
30-iodolup-20(29)-ene-3β,28-diol
Conditions | Yield |
---|---|
With iodine In N,N-dimethyl acetamide at 25℃; for 0.0166667h; Kinetics; Thermodynamic data; Concentration; Temperature; Solvent; | 94% |
Conditions | Yield |
---|---|
With pyridine; tributyl-amine at 0 - 20℃; for 4h; | 93.6% |
Conditions | Yield |
---|---|
With oxalyl dichloride; dimethyl sulfoxide In dichloromethane at -30℃; Svern oxidation; | 93% |
With oxalyl dichloride; dimethyl sulfoxide; triethylamine In dichloromethane at -15 - 20℃; Swern oxidation; | 93% |
With oxalyl dichloride; dimethyl sulfoxide; triethylamine In dichloromethane Swern oxidation; | 90% |
Conditions | Yield |
---|---|
tetrachlorobis(tetrahydrofuran)hafnium(IV) In chlorobenzene for 16h; Heating; | A 93% B n/a C 7% |
Conditions | Yield |
---|---|
With dmap for 1h; | 93% |
With dmap In dichloromethane for 1h; | 93% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 22℃; for 24h; regioselective reaction; | 93% |
Conditions | Yield |
---|---|
With pyridine for 15h; Addition; Heating; | 92% |
With pyridine for 8h; Reflux; | 92% |
Stage #1: succinic acid anhydride; betulin With pyridine; dmap for 12h; Heating / reflux; Stage #2: With hydrogenchloride In water; ethyl acetate | 67% |
betulin
1,1,1,3,3,3-hexamethyl-disilazane
O,O'-bis-(trimethylsilyl)-betulin
Conditions | Yield |
---|---|
With phosphomolybdic acid In chloroform for 0.833333h; Heating; | 92% |
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