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:638-95-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:638-95-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryalpha-Amyrin CAS:638-95-9 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,
Cas:638-95-9
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
Cas:638-95-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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)
1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:638-95-9
Min.Order:1 Kilogram
FOB Price: $50.0 / 100.0
Type:Lab/Research institutions
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater
Cas:638-95-9
Min.Order:0 Metric Ton
FOB Price: $18.0 / 20.0
Type:Lab/Research institutions
inquiryOur 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
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
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:638-95-9
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:638-95-9
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryfactory?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
Shandong Mopai Biotechnology 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 chemicals. W
1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:638-95-9
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh 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
ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac
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.
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
We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate
We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white to yellow powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as
alpha-Amyrin cas 638-95-9Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
We are professional supplier in China for this product, we are dedicated to providing customers with the best quality, price, and service. Please feel free to send us inquiries.Appearance:Please contact us for product details Package:As per shipment
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
Wuhan Xinweiye Chemical Co., Ltd. is mainly engaged in the process development and production of customized synthesis and pharmaceutical intermediates. We have professional researchers in organic synthesis, analytical chemistry and production process
urs-12-en-3β-yl acetate
α-amyrin
Conditions | Yield |
---|---|
With potassium hydroxide In methanol Reflux; | 99% |
Stage #1: urs-12-en-3β-yl acetate With methanol; sodium methylate at 20℃; for 2h; Stage #2: | 92% |
With methanol; sodium methylate at 20℃; for 2h; | 88% |
With potassium hydroxide In methanol | |
With potassium hydroxide In ethanol for 3h; Deacetylation; Heating; |
α-amyrin
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 14h; Reagent/catalyst; Solvent; | 94% |
urs-12-en-3-one
aluminum isopropoxide
A
α-amyrin
B
3α-hydroxyurs-12-ene
Conditions | Yield |
---|---|
With isopropyl alcohol |
Conditions | Yield |
---|---|
With nickel Hydrogenation; |
Conditions | Yield |
---|---|
at 200℃; |
Conditions | Yield |
---|---|
at 200℃; |
urs-12-en-3-one
aluminum isopropoxide
isopropyl alcohol
A
α-amyrin
B
3α-hydroxyurs-12-ene
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride |
α-amyrin
Conditions | Yield |
---|---|
With sulfuric acid In ethanol |
α-amyrin
Conditions | Yield |
---|---|
With nitric acid; sodium chloride In pyridine at 0℃; for 0.2h; | 2.9 g |
Conditions | Yield |
---|---|
Hydrogenation; |
3β-acetoxy-ursen-(12)-one-(16)
sodium ethanolate
hydrazine
α-amyrin
Conditions | Yield |
---|---|
at 250℃; |
Conditions | Yield |
---|---|
Hydrogenation; |
(3β)-urs-12-en-3-yl palmitate
α-amyrin
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol |
lupenol
A
α-amyrin
B
germanicol
C
taraxasterol
E
pseudo-taraxasterol
F
δ-amyrin
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid In chloroform-d1 at 23℃; for 24h; Inert atmosphere; | A 10 %Spectr. B 15 %Spectr. C 10 %Spectr. D 17 %Spectr. E 29 %Spectr. F 12 %Spectr. |
lupenol
A
α-amyrin
B
germanicol
D
pseudo-taraxasterol
E
δ-amyrin
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid In chloroform-d1 at 23℃; for 12h; Inert atmosphere; | A 12 %Spectr. B 8 %Spectr. C 17 %Spectr. D 46 %Spectr. E 12 %Spectr. |
α-amyrin
Conditions | Yield |
---|---|
With methanol; sodium hydroxide for 10h; |
urs-12-ene-3β-decanoate
α-amyrin
Conditions | Yield |
---|---|
With methanol; sodium hydroxide for 10h; |
α-amyrin
Conditions | Yield |
---|---|
With methanol; sodium hydroxide for 10h; |
isoursenol
α-amyrin
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid In chloroform-d1 at 23℃; for 0.25h; | 93 %Spectr. |
Conditions | Yield |
---|---|
With potassium hydroxide |
Conditions | Yield |
---|---|
With potassium hydroxide |
α-amyrin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: lithium aluminium tetrahydride / tetrahydrofuran / 4 h / 0 - 20 °C 2: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: potassium carbonate / N,N-dimethyl-formamide / 0.5 h 1.2: 12 h / 20 °C 2.1: 1H-imidazole / N,N-dimethyl-formamide / 24 h / 50 °C 3.1: lithium aluminium tetrahydride / tetrahydrofuran / 0 °C / Reflux 4.1: pyridine / dichloromethane / 0.25 h / 0 °C 5.1: lithium aluminium tetrahydride / tetrahydrofuran / 4 h / 0 - 20 °C 6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 20 °C View Scheme |
methyl (3β)-3-hydroxyurs-12-en-28-oate
α-amyrin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 1H-imidazole / N,N-dimethyl-formamide / 24 h / 50 °C 2: lithium aluminium tetrahydride / tetrahydrofuran / 0 °C / Reflux 3: pyridine / dichloromethane / 0.25 h / 0 °C 4: lithium aluminium tetrahydride / tetrahydrofuran / 4 h / 0 - 20 °C 5: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 20 °C View Scheme |
(3β)-methyl 3-{[(1,1-dimethylethyl)dimethylsilyl]oxy}-urs-12-en-28-oate
α-amyrin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: lithium aluminium tetrahydride / tetrahydrofuran / 0 °C / Reflux 2: pyridine / dichloromethane / 0.25 h / 0 °C 3: lithium aluminium tetrahydride / tetrahydrofuran / 4 h / 0 - 20 °C 4: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 20 °C View Scheme |
(3β)-3-{[(1,1-dimethylethyl)dimethylsilyl]oxy}-urs-12-en-28-ol
α-amyrin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: pyridine / dichloromethane / 0.25 h / 0 °C 2: lithium aluminium tetrahydride / tetrahydrofuran / 4 h / 0 - 20 °C 3: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
With pyridinium chlorochromate In dichloromethane at 20℃; for 12h; | 90% |
With chromium(VI) oxide; sulfuric acid In acetone | |
With 4-methylisopropylbenzene; nickel Heating; |
nicotinic acid
α-amyrin
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a, 14,14a,14b-icosahydropicen-3-ylnicotinate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 85% |
α-amyrin
para-chlorobenzoic acid
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 4-chlorobenzoate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 80% |
Conditions | Yield |
---|---|
With dmap In dichloromethane for 3h; | 77% |
α-amyrin
5-oxo-5-phenylvaleric acid
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 5-oxo-5-phenylpentanoate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 72% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 72% |
α-amyrin
acetic anhydride
urs-12-en-3β-yl acetate
Conditions | Yield |
---|---|
With dmap In dichloromethane for 3h; | 71% |
With pyridine | |
With pyridine | |
With pyridine for 5h; Heating; |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 18h; Acetylation; | 68% |
4-Methoxyphenylacetic acid
α-amyrin
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 2-(4-methoxyphenyl)acetate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 54% |
2-Picolinic acid
α-amyrin
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl nicotinate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 53% |
α-amyrin
A-neo-ursa-3(5),12-diene
Conditions | Yield |
---|---|
With phosphorus pentaoxide In toluene for 2h; Heating; | 52% |
α-amyrin
4-(4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yloxy)-4-oxo-butanoic acid
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl succinate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 52% |
quinoline-2-carboxylic acid
α-amyrin
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl isoquinoline-1-carboxylate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 51% |
succinic acid anhydride
α-amyrin
4-(4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yloxy)-4-oxo-butanoic acid
Conditions | Yield |
---|---|
With dmap In dichloromethane at 20℃; for 4h; | 48% |
Conditions | Yield |
---|---|
With chromium(VI) oxide In acetic acid for 48h; Ambient temperature; | A 47% B 24% |
With chromium(VI) oxide In acetic acid Ambient temperature; | A 47% B 24% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 46% |
Hippuric Acid
α-amyrin
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 2-benzamidoacetate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 43% |
α-amyrin
2,5-dimethylbenzoic acid
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 2,5-dimethylbenzoate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 43% |
phthalic anhydride
α-amyrin
2-(4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yloxy)carbonylbenzoic acid
Conditions | Yield |
---|---|
With dmap In dichloromethane at 20℃; for 4h; | 42% |
α-amyrin
2-Bromopropionic acid
4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl 2-bromopropanoate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 4h; | 35% |
Conditions | Yield |
---|---|
With diethyl ether |
pyridine
α-amyrin
Stearoyl chloride
(3β)-urs-12-en-3-yl stearate
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
With selenium at 350℃; |
Conditions | Yield |
---|---|
With selenium at 350℃; |
α-amyrin
N-chlorobetainyl chloride
trimethyl-urs-12-en-3β-yloxycarbonylmethyl-ammonium; chloride
Conditions | Yield |
---|---|
With chloroform |
Conditions | Yield |
---|---|
With selenium | |
With sulfur |
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