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:486-35-1
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryDayangchem'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:486-35-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur 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
Density: 1.3431 (rough estimate) Melting point: 265-268 ° C (dec.) Boiling point: 270.35 ° C (rough estimate) Flash point: 184.5 ° C Steam pressure: 5.18E-08mmHg at 25 ° C Solubility in Methanol Refractive index: 1.4500 (estimate) Aci
Cas:486-35-1
Min.Order:5 Kilogram
FOB Price: $20.0 / 80.0
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:486-35-1
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
Cas:486-35-1
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
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:486-35-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAbout Product Details Items Specifications Test Results Appearance White to white crystalline powde
Cas:486-35-1
Min.Order:100 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiryBest 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
Chengdu 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
Cas:486-35-1
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryA 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:486-35-1
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquirysuperior quality Appearance:powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Used as Pharmaceutical Intermediates Transportation:as per your
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
Why Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
7,8-DihydroxycoumarinAppearance:powder Storage:Store in dry, dark and ventilated place Package:according to customers' requirements Application:486-35-1 Transportation:By air(EMS or EUB or FedEx or TNT ect...) or by sea(FOB or CIF or CNF ect...)or ac
We are leading fine chemicals supplier in China and Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED intermediates (Flu
Cas:486-35-1
Min.Order:1 Gram
FOB Price: $9.0 / 10.0
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,
Cas:486-35-1
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
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
Cas:486-35-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
The quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. COA and HPLC will be shipped out with goods. You can also inform your analysis method and we will follow your analysis me
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
Shanghai Finebiotech Co.,Ltd.was established in 2020, which providing professional chemical services. As a customer-oriented company, we have distinguished ourself from others in providing worldwide customers with cost-effective and efficient service
Appearance:Solid powder Storage:Sealed,light and oxygen resistant Package:Foil bag or drum Application:Applied in dietary supplements,pharmaceutical or cosmeticeuticals Transportation:by sea or air Port:Beijing or Guangzhou Port
1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
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:486-35-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryHangzhou Dingyan 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 in your re
Q1: Are you a manufacturer Answer: Yes, we are factory founded on 2012.Q2: How to contact with us Click "contact supplier" And then send us message the product you interest in, you will get reply within 12 hours.Q3:Which kind of payment terms do you
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:486-35-1
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With ytterbium(III) trifluoromethanesulfonate hydrate at 80℃; for 0.0333333h; Reagent/catalyst; Microwave irradiation; | 98% |
With sulfuric acid at 120℃; for 1h; | 70% |
With sulfuric acid at 120℃; for 0.5h; | 59% |
With sulfuric acid at 124 - 126℃; for 0.833333h; | 53.4% |
With sulfuric acid at 125℃; for 0.833333h; |
7,8-dibenzyloxycoumarin
daphnetin
Conditions | Yield |
---|---|
With aluminum tri-bromide In nitrobenzene for 0.0833333h; | 80% |
Conditions | Yield |
---|---|
With sulfuric acid | 65% |
With sulfuric acid at 120 - 130℃; for 1h; | 61% |
Stage #1: malic acid With sulfuric acid at 20℃; for 0.166667h; Stage #2: 2-hydroxyresorcinol at 20 - 120℃; for 2h; | 40% |
2,3,4-trihydroxybenzylaldehyde
ethyl (triphenylphosphoranylidene)acetate
daphnetin
Conditions | Yield |
---|---|
for 0.25h; Inert atmosphere; Reflux; | 65% |
for 4h; Reflux; Inert atmosphere; | 65% |
Conditions | Yield |
---|---|
With 2-iodoxybenzoic acid In dimethyl sulfoxide at 25℃; for 2h; Time; regioselective reaction; | 59% |
Conditions | Yield |
---|---|
With sulfuric acid | 20% |
Conditions | Yield |
---|---|
With pyridine; sodium hydroxide; dihydrogen peroxide |
7,8-Dihydroxy-2-oxo-2H-1-benzopyran-3-carboxylic acid
daphnetin
Conditions | Yield |
---|---|
With sodium hydrogensulfite anschliessend mit Schwefelsaeure erhitzen; |
Conditions | Yield |
---|---|
With hydrogen iodide In acetic acid for 2h; Heating; | 20 mg |
Conditions | Yield |
---|---|
With hydrogenchloride |
7-hydroxy-2-oxo-2H-chromen-8-yl β-D-glucopyranoside
A
D-Glucose
B
daphnetin
Conditions | Yield |
---|---|
With hydrogenchloride |
pyridine
8-formyl-7-hydroxycoumarin
1-methyl-4-nitrosobenzene
dihydrogen peroxide
daphnetin
daphnetin
Conditions | Yield |
---|---|
With mineral acid | |
With emulsin |
Conditions | Yield |
---|---|
With sodium acetate at 170 - 180℃; Erwaermen des erhaltenen Daphnetin-diacetats mit Schwefelsaeure; | |
With sodium acetate |
2-<3,4-Dihydroxy-phenyl>-chromen-7-on, Anhydro-7,3',4'-trihydroxy-flaven-(4 oder 2)-ol
A
7-hydroxy-2H-chromen-2-one
B
daphnetin
Conditions | Yield |
---|---|
With 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl In methanol; phosphate buffer at 25℃; for 0.0138889h; pH=7.4; Kinetics; Further Variations:; Reagents; reaction time; Oxidation; |
daphnetin
Conditions | Yield |
---|---|
With hydrogenchloride In water for 1h; Heating; |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 1h; Heating; |
daphnetin
Conditions | Yield |
---|---|
With hydrogenchloride; water for 3h; Heating; |
8-hydroxy-7-methoxy-2H-chromen-2-one
daphnetin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 20 mg / HI / acetic acid / 2 h / Heating View Scheme |
7-methoxy-8-[(3-methyl-2-butenyl)oxy]-2H-1-benzopyran-2-one
daphnetin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 15 mg / 10percent aq.H2SO4 / 1 h / Heating 3: 20 mg / HI / acetic acid / 2 h / Heating View Scheme |
Conditions | Yield |
---|---|
Acid hydrolysis; |
7-hydroxy-2-oxo-2H-chromen-8-yl β-D-glucopyranoside
daphnetin
Conditions | Yield |
---|---|
Acid hydrolysis; |
7-O-β-D-glucopyranosyl-8-methoxybenzopyranone
daphnetin
Conditions | Yield |
---|---|
With water Acidic conditions; |
Conditions | Yield |
---|---|
In methanol; diethyl ether at 20℃; for 2h; | 100% |
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; | 99% |
With pyridine; dmap at 20℃; | 99% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; Reflux; | 99% |
Conditions | Yield |
---|---|
With dmap In pyridine at 20℃; | 96.7% |
With pyridine In dichloromethane | 92% |
With pyridine; dmap at 20℃; | 51% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 13h; | 92% |
Dichlorodiphenylmethane
daphnetin
2,2-Diphenyl-[1,3]dioxolo[4,5-h]chromen-8-one
Conditions | Yield |
---|---|
at 160℃; for 0.166667h; | 88.2% |
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; | 84% |
With pyridine; dmap at 20℃; | 84% |
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; | 78% |
Conditions | Yield |
---|---|
With dmap In dichloromethane at 0 - 30℃; for 18h; | 78% |
Conditions | Yield |
---|---|
With cesium bicarbonate In toluene at 40℃; for 30h; Inert atmosphere; Irradiation; | 77% |
Conditions | Yield |
---|---|
With dmap In acetonitrile at 0 - 30℃; for 18h; | 77% |
Conditions | Yield |
---|---|
With dmap In acetonitrile at 0 - 30℃; for 18h; | 75% |
Conditions | Yield |
---|---|
With dmap In acetonitrile at 0 - 30℃; for 18h; | 74% |
Conditions | Yield |
---|---|
With dmap In dichloromethane at 0 - 30℃; for 18h; | 73% |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In acetone | 65% |
With sodium hydrogencarbonate 1.) Me2CO, RT, 1 h, 2.) reflux, 24 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetone at 20℃; for 3h; | 65% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; Reflux; | 63% |
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 10 - 20℃; Mitsunobu reaction; sonication; | A 30% B 61% C 4% |
Conditions | Yield |
---|---|
With tetra(n-butyl)ammonium hydroxide In toluene at 50℃; for 36h; Inert atmosphere; Irradiation; | 60% |
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; | 58% |
With pyridine; dmap at 20℃; | 58% |
Conditions | Yield |
---|---|
Stage #1: daphnetin With potassium carbonate In acetone at 20℃; for 0.5h; Stage #2: 4-Methylbenzyl bromide In acetone at 65℃; | 58% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20℃; Reflux; | 58% |
methanol
Farnesol
daphnetin
A
8-hydroxy-7-methoxy-2H-chromen-2-one
B
7,8-dimethoxy-chromen-2-one
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 10 - 20℃; Mitsunobu reaction; sonication; | A 52% B 10% |
Conditions | Yield |
---|---|
With potassium hydroxide In water Heating; | 47% |
coniferal alcohol
daphnetin
Conditions | Yield |
---|---|
With Na,K-phosphate buffer; horseradish peroxidase at 37℃; for 168h; | 43.1% |
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