As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:118-42-3
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inquiryItems Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------
Cas:118-42-3
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inquiryhigh quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
Cas:118-42-3
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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
Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&D b
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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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:118-42-3
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inquiryItem Name Hydroxychloroquine CAS NO 118-42-3 Apparence White Powder Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:drum Applic
Appearance:White powder Storage:Room temperature Package:25kg/drum Application:Synthetic anti-malaria Chemicals Transportation:Express/Sea/Air Port:Any port in china
Cas:118-42-3
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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:118-42-3
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inquiry1.Strong backup of factory:hign ability,favorable quality and competitive price. 2.Most of our products in catalogue are have stock. 3.Free sample could be provided. 4.Suitable package to protect the product the product quality. 5.the lead time
Cas:118-42-3
Min.Order:1 Kilogram
FOB Price: $2000.0
Type:Trading Company
inquiryHydroxychloroquine CAS:118-42-3 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 intermed
Cas:118-42-3
Min.Order:1 Gram
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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:118-42-3
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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
Cas:118-42-3
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inquiryMelting point 89-91° Boiling point 516.7±50.0 °C(Predicted) density 1.1438 (rough estimate) refractive index 1.5790 (
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:118-42-3
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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
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:118-42-3
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inquiryOur Advantages Production: Advanced chemical equipment with years of experience.Staffs for producing various extract products. Quality Control:A complete set of Testing Professional and Analysis Equipment ensures the Quality Requirements and Speci
Cas:118-42-3
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FOB Price: $150.0 / 180.0
Type:Trading Company
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:118-42-3
Min.Order:10 Gram
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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:118-42-3
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryEstablished in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
Cas:118-42-3
Min.Order:10 Gram
Negotiable
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:118-42-3
Min.Order:1 Kilogram
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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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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:118-42-3
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Type:Trading Company
inquiryWe Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
Cas:118-42-3
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inquiryZhenyu 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
Cas:118-42-3
Min.Order:1 Kilogram
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inquiryShandong 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:118-42-3
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inquiry1.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
Cas:118-42-3
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inquiryhydroxychloroquine
Conditions | Yield |
---|---|
With sodium hydroxide In water at 20℃; Cooling with ice; | 97.6% |
With sodium hydroxide In water; ethyl acetate at 0℃; for 1h; | 91% |
With sodium hydroxide In water at 0℃; for 0.5h; | 91% |
With ammonia In chloroform at 20℃; for 1h; pH=9; | 90% |
With ammonium hydroxide In water |
Conditions | Yield |
---|---|
With KF/Al2O3 In toluene at 110 - 120℃; for 12h; Reagent/catalyst; Solvent; Temperature; Large scale; | 94% |
With sodium hydroxide at 140℃; for 6h; pH=7 - Ca. 8; Temperature; pH-value; Inert atmosphere; | 91.2% |
at 78 - 130℃; for 8.33333h; Temperature; Inert atmosphere; | 90.3% |
Conditions | Yield |
---|---|
In ethylene glycol at 90 - 100℃; for 24h; Temperature; Large scale; | 92.3% |
hydroxychloroquine
Conditions | Yield |
---|---|
With sodium t-butanolate In isopropyl alcohol Solvent; Reagent/catalyst; | 88.3% |
Conditions | Yield |
---|---|
In acetonitrile for 3h; | 88.3% |
Conditions | Yield |
---|---|
With phenol at 125 - 130℃; | |
With potassium iodide; phenol |
5-(N-ethyl-N-2-hydroxyethylamine)-2-pentanone
hydroxychloroquine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium carbonate; hydroxylamine / tetrahydrofuran / 0.17 h / 100 °C / Inert atmosphere; Flow reactor 2: hydrogen / tetrahydrofuran / 4 h / 80 °C / 7500.75 Torr / Inert atmosphere; Flow reactor 3: potassium carbonate; triethylamine / ethanol / 6 h / 125 °C / Inert atmosphere; Flow reactor View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: potassium carbonate / tetrahydrofuran / 0.17 h / 80 - 100 °C / Flow reactor; Inert atmosphere 2: potassium carbonate; hydroxylamine / tetrahydrofuran / 0.17 h / 100 °C / Inert atmosphere; Flow reactor 3: hydrogen / tetrahydrofuran / 4 h / 80 °C / 7500.75 Torr / Inert atmosphere; Flow reactor 4: potassium carbonate; triethylamine / ethanol / 6 h / 125 °C / Inert atmosphere; Flow reactor View Scheme | |
Multi-step reaction with 3 steps 1.1: potassium carbonate / tetrahydrofuran / Flow reactor; Inert atmosphere 1.2: 100 °C / Flow reactor; Inert atmosphere 2.1: hydrogen / tetrahydrofuran / 80 °C / 7500.75 Torr 3.1: potassium carbonate; triethylamine / ethanol / 6 h / 125 °C / 775.74 Torr / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: hydrogen iodide / water / 0.08 h / 80 °C / 2250.23 Torr / Inert atmosphere; Flow reactor 2: potassium carbonate / tetrahydrofuran / 0.17 h / 80 - 100 °C / Flow reactor; Inert atmosphere 3: potassium carbonate; hydroxylamine / tetrahydrofuran / 0.17 h / 100 °C / Inert atmosphere; Flow reactor 4: hydrogen / tetrahydrofuran / 4 h / 80 °C / 7500.75 Torr / Inert atmosphere; Flow reactor 5: potassium carbonate; triethylamine / ethanol / 6 h / 125 °C / Inert atmosphere; Flow reactor View Scheme | |
Multi-step reaction with 4 steps 1.1: sodium hydrogencarbonate; hydrogen iodide / water / 80 °C / Inert atmosphere 2.1: potassium carbonate / tetrahydrofuran / Flow reactor; Inert atmosphere 2.2: 100 °C / Flow reactor; Inert atmosphere 3.1: hydrogen / tetrahydrofuran / 80 °C / 7500.75 Torr 4.1: potassium carbonate; triethylamine / ethanol / 6 h / 125 °C / 775.74 Torr / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 19 h / 110 - 130 °C 2: sodium t-butanolate / isopropyl alcohol View Scheme | |
Multi-step reaction with 2 steps 1: cetyltrimethylammonim bromide; potassium fluoride / acetonitrile / 2 h / 80 °C / Inert atmosphere 2: acetonitrile / 3 h View Scheme |
rac-5--2-pentanamine
hydroxychloroquine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 19 h / 110 - 130 °C 2: sodium t-butanolate / isopropyl alcohol View Scheme |
hydroxychloroquine
Conditions | Yield |
---|---|
With sulfuric acid In water at 15 - 55℃; for 5h; Temperature; Solvent; | 98% |
With sulfuric acid In ethanol at 5 - 10℃; for 12h; Large scale; | 98.6% |
With sulfuric acid In ethanol at 0 - 30℃; for 5h; pH=4.5 - 5.5; Solvent; | 96.1% |
1-ethenesulfonyl-piperidine
hydroxychloroquine
Conditions | Yield |
---|---|
Stage #1: hydroxychloroquine With silver(I) acetate; 1,2-bis-(diphenylphosphino)ethane In N,N-dimethyl-formamide at -20℃; Inert atmosphere; Stage #2: 1-ethenesulfonyl-piperidine With potassium hexamethylsilazane In tetrahydrofuran; N,N-dimethyl-formamide at -20℃; for 9h; Inert atmosphere; regioselective reaction; | 92% |
Conditions | Yield |
---|---|
With (μ-oxo)bis[(1,2-ethanediamino-N,N'-bis(salicylidene))iron(III)] In toluene at 120℃; for 5h; Inert atmosphere; Schlenk technique; chemoselective reaction; | 89% |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 20℃; for 4h; Inert atmosphere; Schlenk technique; | 75% |
hydroxychloroquine
Conditions | Yield |
---|---|
With diphenyl phosphoryl azide; 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl-formamide for 48h; Inert atmosphere; | 70% |
With diphenyl phosphoryl azide; 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl-formamide at 20℃; for 48h; Inert atmosphere; |
hydroxychloroquine
tert-butyldimethylsilyl chloride
Conditions | Yield |
---|---|
With triethylamine In 1,2-dichloro-ethane at 20℃; for 48h; | 68% |
hydroxychloroquine
Conditions | Yield |
---|---|
Stage #1: hydroxychloroquine With (S)-Malic acid In ethanol; ethyl acetate at 0 - 5℃; for 0.5h; Stage #2: With sodium methylate In methanol at 0 - 20℃; for 0.5h; Reagent/catalyst; Solvent; | 64% |
hydroxychloroquine
Conditions | Yield |
---|---|
Stage #1: hydroxychloroquine With D-Malic acid In ethanol; ethyl acetate at 0 - 5℃; for 0.5h; Stage #2: With sodium methylate In methanol at 0 - 20℃; for 0.5h; Reagent/catalyst; Solvent; | 56% |
hydroxychloroquine
acrylonitrile
3-(2-((4-((7-chloroquinolin-4-yl)amino)pentyl)(ethyl)amino)ethoxy)propanenitrile
Conditions | Yield |
---|---|
With n-butyllithium; copper(I) 2-hydroxy-3-methylbenzoate; 1,2-bis-(diphenylphosphino)ethane In hexane; N,N-dimethyl-formamide at 20℃; for 3h; Michael Addition; Inert atmosphere; chemoselective reaction; | 56% |
hydroxychloroquine
6‐(3‐methyl‐1,4‐dioxo‐1,4‐dihydronaphthalen‐2‐yl)hexanoic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 24h; | 53% |
Conditions | Yield |
---|---|
Stage #1: (9Z,12Z,15Z)-octadeca-9-12,15-trienoic acid With 4-methyl-morpholine; dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane for 0.5h; Cooling with ice; Inert atmosphere; Stage #2: hydroxychloroquine In dichloromethane at 20℃; for 12h; Reagent/catalyst; Inert atmosphere; | 52.5% |
Conditions | Yield |
---|---|
With potassium tert-butylate at 110 - 115℃; for 4h; | 50.3% |
Conditions | Yield |
---|---|
With silver(I) acetate; sodium hexamethyldisilazane; 1,2-bis-(diphenylphosphino)ethane In N,N-dimethyl-formamide at -20℃; chemoselective reaction; | 33% |
succinic acid anhydride
hydroxychloroquine
hydroxychloroquine-succinate
Conditions | Yield |
---|---|
With dmap; sodium sulfate In pyridine at 20℃; for 6h; |
hydroxychloroquine
Conditions | Yield |
---|---|
With 1H-tetrazole In dichloromethane; acetonitrile at 20℃; for 1.5 - 2h; |
hydroxychloroquine
Conditions | Yield |
---|---|
pH=8; Electrochemical reaction; |
hydroxychloroquine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: triethylamine / 1,2-dichloro-ethane / 48 h / 20 °C 2.1: potassium carbonate / dichloromethane / 2 h / 0 °C 2.2: 36 h / 0 - 20 °C View Scheme |
Conditions | Yield |
---|---|
Stage #1: (4-biphenylyl)acetic acid With 1,1'-carbonyldiimidazole In chloroform at 20℃; for 2 - 5h; Stage #2: hydroxychloroquine In chloroform at 70℃; for 10 - 12h; Reflux; |
Conditions | Yield |
---|---|
Stage #1: [1-(4-chlorobenzoyl)-5-methoxy-2-methylindol-3-yl]acetic acid With 1,1'-carbonyldiimidazole In chloroform at 20℃; for 2 - 5h; Stage #2: hydroxychloroquine In chloroform at 70℃; for 10 - 12h; Reflux; |
Conditions | Yield |
---|---|
Stage #1: aceclofenac With 1,1'-carbonyldiimidazole In chloroform at 20℃; for 2 - 5h; Stage #2: hydroxychloroquine In chloroform at 70℃; for 10 - 12h; Reflux; |
Conditions | Yield |
---|---|
Stage #1: [2-(2,6-dichloroanilino)phenyl]acetic acid With 1,1'-carbonyldiimidazole In chloroform at 20℃; for 2 - 5h; Stage #2: hydroxychloroquine In chloroform at 70℃; for 10 - 12h; Reflux; |
Conditions | Yield |
---|---|
Stage #1: licofelone With 1,1'-carbonyldiimidazole In chloroform at 20℃; for 2 - 5h; Stage #2: hydroxychloroquine In chloroform at 70℃; for 10 - 12h; Reflux; |
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