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
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
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
Cas:476-70-0
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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
Cas:476-70-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryBoldine CAS:476-70-0 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:476-70-0
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:476-70-0
Min.Order:1 Kilogram
Negotiable
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
Cas:476-70-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZibo 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:476-70-0
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiry4H-Dibenzo[de,g]quinoline-2,9-diol,5,6,6a,7-tetrahydro-1,10-dimethoxy-6-methyl-, (6aS)- (+)-(s)-boldine;(s)-boldine;(s)-yl;1,10-dimethoxy-6a-alpha-aporphine-2,9-diol;1,10-dimethoxy-6a-alpha-aporphine-9-diol;4h-dibenzo(de,g)quinoline-2,9-diol,5,6,
Hubei 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)
Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home an
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
LIDE PHARMACEUTICALS LIMITED is a professional leading manufacturer of chemicals and APIs in China. Our core business line covers APIs, Intermediates, Flavours and fragrances, Specialty chemicals, Dietary additives etc.We are specialized in chemical
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:Herbal extr
Cas:476-70-0
Min.Order:0
Negotiable
Type:Trading Company
inquiryAcmec 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:476-70-0
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
best seller Application:API
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
Cas:476-70-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe 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
Cas:476-70-0
Min.Order:0
Negotiable
Type:Trading Company
inquiryAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:yellow to light brown crystals Storage:Room temperature with sealed well Package:according to the clients requirement Applicatio
Boldine cas 476-70-0Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Use in healthcare products. Use in food products. Use in Cosmetic p
best seller Application:API
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:5mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port
The factory supplies Application:manufacturing supplies
Cas:476-70-0
Min.Order:0
Negotiable
Type:Trading Company
inquiryConditions | Yield |
---|---|
With water |
5-Chloro-1-phenyltetrazole
boldine
2,9-O,O-bis(1-phenyl-1H-tetrazol-5-yl)boldine
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile for 24h; Heating / reflux; | 96% |
With potassium carbonate; potassium iodide In acetonitrile at 90℃; for 24h; | 80% |
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 90℃; for 16h; | 87% |
Conditions | Yield |
---|---|
With potassium carbonate In ethanol at 70℃; for 9h; | 75% |
Conditions | Yield |
---|---|
In diethyl ether at 20℃; for 24h; | 65% |
Conditions | Yield |
---|---|
With bromine; acetic acid In chloroform at 20℃; Bromination; | A 64% B 9% |
With N-Bromosuccinimide; trifluoroacetic acid In chloroform at 20℃; for 1h; Bromination; | A 54% B 13% |
boldine
(S)-8-NO-boldine
Conditions | Yield |
---|---|
With sodium nitrite In acetic acid at 20℃; for 1h; | 64% |
trifluoroacetic acid
boldine
methyl iodide
A
N-methylsecoboldine trifluoroacetate
B
N,N-dimethylsecoboldine trifluoroacetate
C
N-methylboldine trifluoroacetate
Conditions | Yield |
---|---|
Stage #1: boldine; methyl iodide In methanol; acetonitrile at 20℃; for 6h; Stage #2: trifluoroacetic acid In methanol; water; acetonitrile for 1h; | A 7% B 3% C 51% |
Conditions | Yield |
---|---|
With N-chloro-succinimide; trifluoroacetic acid In chloroform at 22℃; for 1h; Chlorination; | A 48% B 19% |
boldine
Conditions | Yield |
---|---|
With N-iodo-succinimide; trifluoroacetic acid In chloroform at 20℃; for 2h; Iodination; | 47% |
N,N-phenylbistrifluoromethane-sulfonimide
phenyltrimethylammonium chloride
boldine
Conditions | Yield |
---|---|
Stage #1: phenyltrimethylammonium chloride; boldine With potassium tert-butylate In N,N-dimethyl-formamide at 90℃; for 12h; Stage #2: N,N-phenylbistrifluoromethane-sulfonimide With TEA; potassium carbonate In dichloromethane for 72h; Further stages.; | A 36% B 38% |
boldine
Conditions | Yield |
---|---|
With N-Bromosuccinimide In trifluoroacetic acid at 20℃; for 3h; | 35.9% |
methanol
boldine
A
(+)-Predicentrine
B
N-methyllaurotetanine
C
glaucine
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 0 - 20℃; Inert atmosphere; | A n/a B n/a C 26% |
boldine
(S)-1,10-Dimethoxy-6-methyl-6-oxy-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline-2,9-diol
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform for 2h; Heating; | 20% |
boldine
Conditions | Yield |
---|---|
With tritium oxide; potassium tert-butylate at 100℃; for 110h; sealed tube; |
diazomethane
boldine
A
(+)-Predicentrine
B
glaucine
Conditions | Yield |
---|---|
In methanol; diethyl ether |
phenyltrimethylammonium iodide
boldine
A
(+)-Predicentrine
B
glaucine
Conditions | Yield |
---|---|
Heating; | |
In N,N-dimethyl-formamide at 100 - 110℃; for 2h; | |
In N,N-dimethyl-formamide at 100 - 110℃; for 2h; |
phenyltrimethylammonium chloride
boldine
A
(+)-Predicentrine
B
N-methyllaurotetanine
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 90℃; for 12h; Title compound not separated from byproducts.; |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Heating 2: pyridine View Scheme |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 24 percent / N-chlorosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 49 percent / N-iodosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 26 percent / N-iodosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 27 percent / N-chlorosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 24 percent / N-bromosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
3-bromopredicentrine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 55 percent / N-bromosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
boldine
3,8-dibromoglaucine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; diethyl ether 2: 47 percent / N-bromosuccinimide; trifluoroacetic acid / 2 h / 20 °C View Scheme |
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