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:835-31-4
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:cool dry place Package:1kg/foil bag;25kg/drum Application:medicine raw material Transportatio
Cas:835-31-4
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryXi’an Quanao Biotech Co., Ltd. with 18 years experience in plant extract filed. Product grade: Medicine, Health care product, Cosmetics, Food, Beverage, Feed. Hot selling market: Europe, North America, South America, Middle East, Asia Pacifi
Cas:835-31-4
Min.Order:1 Kilogram
FOB Price: $69.0 / 129.0
Type:Manufacturers
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
Shanghai 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:835-31-4
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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
Cas:835-31-4
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
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:835-31-4
Min.Order:10 Gram
FOB Price: $146.0 / 176.0
Type:Trading Company
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:835-31-4
Min.Order:10 Kilogram
Negotiable
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:835-31-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryNaphazoline CAS:835-31-4 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:835-31-4
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:835-31-4
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryAdvantage : 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&
Cas:835-31-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1. 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:835-31-4
Min.Order:1 Kilogram
FOB Price: $10.0 / 100.0
Type:Lab/Research institutions
inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda
Cas:835-31-4
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Lab/Research institutions
inquiryOur Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
Packing: 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 Transportation:Express/Sea/Air Port:Ningbo/Shanghai/Qingd
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:835-31-4
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
We 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:835-31-4
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
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:835-31-4
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:835-31-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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:835-31-4
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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
Cas:835-31-4
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryWe produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp
Cas:835-31-4
Min.Order:0
Negotiable
Type:Trading Company
inquiryISO Factory/Good qualityAppearance:off white Storage:dry and cool place Package:10G/BAG; 1KG/BAG ;25KG/DRUM Application:Active pharaceutical ingredients Transportation:BY SEA,AIR,EXPRESS Port:SHANGHAI;BEIJING
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
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:API
Cas:835-31-4
Min.Order:0
Negotiable
Type:Trading Company
inquiryConditions | Yield |
---|---|
for 2h; Time; Reflux; | 85% |
With iron oxide In water; benzene at 80℃; for 4h; | 30% |
naphthalen-1-ylacetonitrile
ethylene diamine mono-p-toluenesulfonic acid salt
naphazoline
Conditions | Yield |
---|---|
With hydrogenchloride |
naphazoline
Conditions | Yield |
---|---|
With ammonia; nickel; isopropyl alcohol at 70℃; under 73550.8 Torr; Hydrogenation.Erhitzen des Reaktionsprodukts unter vermindertem Druck; |
Conditions | Yield |
---|---|
With ammonium chloride; zinc(II) chloride |
1-naphthyl tosylate
naphazoline
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diethyl ether View Scheme |
Conditions | Yield |
---|---|
With carbon disulfide at 110℃; for 2h; Reagent/catalyst; Temperature; |
Conditions | Yield |
---|---|
With hydrogenchloride In acetonitrile at 20℃; Solvent; Large scale; | 92.33% |
With hydrogenchloride In acetone at 5℃; for 0.5h; pH=1; Temperature; Reflux; |
Conditions | Yield |
---|---|
palladium on activated charcoal In toluene for 200h; Heating; | 83% |
palladium on activated charcoal In toluene for 216h; Heating; | 83% |
Conditions | Yield |
---|---|
With thiobenzoic acid; potassium phosphate In N,N-dimethyl acetamide at 20℃; for 6h; Irradiation; | 67% |
Conditions | Yield |
---|---|
With pyridine |
Conditions | Yield |
---|---|
With benzene |
naphazoline
N-(1-naphthylacetyl)ethylenediamine
Conditions | Yield |
---|---|
With sodium hydroxide | |
With water |
2-Chloronicotinoyl chloride
naphazoline
1-<(2-chloro-3-pyridinyl)carbonyl>-4,5-dihydro-2-(1-naphthalenyl)-1H-imidazole
Conditions | Yield |
---|---|
With triethylamine In dichloromethane |
naphazoline
di-tert-butyl dicarbonate
2-Naphthalen-1-ylmethyl-4,5-dihydro-imidazole-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
In tetrahydrofuran Ambient temperature; Yield given; |
Conditions | Yield |
---|---|
In chloroform at 40℃; for 0.4h; Thermodynamic data; ΔG0; | |
In chloroform at 40℃; for 0.4h; |
naphazoline
Conditions | Yield |
---|---|
With iodine In chloroform for 0.5h; Ambient temperature; |
naphazoline
Conditions | Yield |
---|---|
With SO4-. radical In phosphate buffer at 22℃; pH=7.4; Kinetics; hydrogen abstraction; | |
With potassium peroxydiphosphate In water at 25℃; pH=7.1; Kinetics; Reagent/catalyst; Solvent; pH-value; Concentration; Inert atmosphere; Irradiation; aq. phosphate buffer; |
naphazoline
Conditions | Yield |
---|---|
With triethylamine for 5h; Heating; |
Conditions | Yield |
---|---|
With triethylamine for 5h; Heating; |
Conditions | Yield |
---|---|
With triethylamine for 5h; Heating; |
naphazoline
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / 5 h / Heating 2: HBr; CH3COOH / tetrahydrofuran / 1 h / Heating View Scheme |
naphazoline
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / 5 h / Heating 2: HBr; CH3COOH / tetrahydrofuran / 1 h / Heating View Scheme |
naphazoline
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / 5 h / Heating 2: HBr; CH3COOH / tetrahydrofuran / 1 h / Heating View Scheme |
naphazoline
3-(4,5-Dihydro-1H-imidazol-2-yl)-3-naphthalen-1-yl-propionic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: tetrahydrofuran / Ambient temperature 2: 1.) BuLi / 1.) THF, -78 deg C, 1 h, 2.) -78 deg C -> 20 deg C, 1 h, 20 deg C, 1 h 3: aq. HCl / acetic acid / 3 h / 40 °C View Scheme |
naphazoline
2-(2-tert-Butoxycarbonyl-1-naphthalen-1-yl-ethyl)-4,5-dihydro-imidazole-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetrahydrofuran / Ambient temperature 2: 1.) BuLi / 1.) THF, -78 deg C, 1 h, 2.) -78 deg C -> 20 deg C, 1 h, 20 deg C, 1 h View Scheme |
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