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
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Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
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Min.Order:50 Kilogram
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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
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Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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
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Min.Order:10 Kilogram
Negotiable
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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
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Min.Order:1 Gram
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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
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Min.Order:1 Kilogram
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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
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FOB Price: $40.0 / 50.0
Type:Lab/Research institutions
inquiryHenan 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
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inquiryHubei Lidu New Materials Technology Co. , Ltd. is located in No. 12,3C Industrial Park, Zhongxiang Economic Development Zone, Hubei Province. The company is committed to fine chemical raw materials, pharmaceutical intermediates and other production,
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Min.Order:1 Metric Ton
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Type:Lab/Research institutions
inquiryOur Services 1. We are a professional exporter for Optical Brighteners, dyes, pigments 2. Stable and continue quality 3. Quickly delivery 4. Good service Our advantages 1. Government awarded company. Top 100 enterprises in Hangzhou 2. Qua
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Min.Order:0 Metric Ton
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Type:Lab/Research institutions
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
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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
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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
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Min.Order:1 Gram
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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
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Min.Order:1 Metric Ton
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Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in
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Min.Order:0 Metric Ton
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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:
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
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Min.Order:1 Metric Ton
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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
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inquiryOur advantage:Our company was built in 2009 with an ISO certificate.In the past 5 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 Scientif
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Min.Order:1 Kilogram
Negotiable
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inquiryLower 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
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inquiryhigh 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
high qualityAppearance:white crystalline powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
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Min.Order:0
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inquiryhigh purity Storage:normal temperature Package:DRUM Application:mainly for medical use for R&Dpurpose use only Transportation:AIR,SEA Port:BEIJING,SHANGHAI,TIANJIN,SHENZHEN
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Min.Order:0
Negotiable
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inquiryTIANFU-CHEM DISPERSE RED 13Appearance:white powder Storage:room temperature Package:200KG Application:Industrial Grade Transportation:By sea , by air or express
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Min.Order:0
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China
We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
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inquirySAGECHEM/ Disperse Red 13 /Manufacturer in China Application:SAGECHEM/ Disperse Red 13 /Manufacturer in China
Cas:3180-81-2
Min.Order:0
Negotiable
Type:Other
inquirySupply top quality products with a reasonable price Application:api
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 20℃; Cooling with ice; | 96% |
succinic acid anhydride
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 20℃; for 20h; | 90% |
With pyridine; dmap In dichloromethane at 0℃; | 63% |
1,4-diisocyanatobenzene
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; | 84.7% |
terephthaloyl chloride
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; | 82.5% |
With triethylamine In dichloromethane at 20℃; Cooling with ice; |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; | 81% |
1,5-dibromo-pentane
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
5-bromopentyl 2-(N-ethyl-N-{4′-[(2″-chloro-4″-nitrophenyl)-phazo]phenyl}amino)ethyl ether
Conditions | Yield |
---|---|
Stage #1: 2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol With potassium hydroxide; 18-crown-6 ether In tetrahydrofuran at 20℃; for 1h; Stage #2: 1,5-dibromo-pentane In tetrahydrofuran at 20℃; for 20h; | 78% |
With 18-crown-6 ether; potassium hydroxide In tetrahydrofuran | 59% |
6-O-(3-carboxypropanoyl)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
succinic acid 2-{[4-(2-chloro-4-nitro-phenylazo)-phenyl]-ethyl-amino}-ethyl ester 2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-ylmethyl ester
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 20h; | 70% |
6-O-(3-carboxypropanoyl)-1,2:3,5-di-O-isopropylidene-α-D-glucofuranose
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
succinic acid 2-{[4-(2-chloro-4-nitro-phenylazo)-phenyl]-ethyl-amino}-ethyl ester 2,2,5,5-tetramethyl-tetrahydro-1,3,4,6,8-pentaoxa-cyclopenta[a]inden-7-ylmethyl ester
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 20h; | 70% |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; Inert atmosphere; | 61% |
Conditions | Yield |
---|---|
With water; tetra(n-butyl)ammonium hydrogensulfate; sodium hydroxide In tetrahydrofuran at 20℃; for 16h; | 60% |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With stannous octoate In toluene at 85℃; for 4h; | 48.24% |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Hexamethylene diisocyanate
Conditions | Yield |
---|---|
With stannous octoate In toluene at 85℃; for 4h; | 32.04% |
nonadecanoyl chloride
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -4℃; for 24h; Acylation; |
methanesulfonyl chloride
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 12h; |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / CH2Cl2 / 12 h / 20 °C 2: 93 percent / sodium azide / dimethylsulfoxide / 16 h / 50 °C View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 70 percent / N'-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride; 4-dimethylaminopyridine / tetrahydrofuran / 20 h / 20 °C 2: aq. CF3COOH / 1.5 h / 20 °C View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 70 percent / N'-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride; 4-dimethylaminopyridine / tetrahydrofuran / 20 h / 20 °C 2: aq. CF3COOH / 1.5 h / 20 °C View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 70 percent / N'-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride; 4-dimethylaminopyridine / tetrahydrofuran / 20 h / 20 °C 2: aq. CF3COOH / 1.5 h / 20 °C View Scheme |
4-Nitrophenyl chloroformate
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
C23H20ClN5O7
Conditions | Yield |
---|---|
In pyridine at 70℃; for 0.666667h; |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Stage #1: 50/50 % (M/M) Styrene-Maleic anhydride copolymer; 2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol With dmap In 1,4-dioxane for 48h; Heating / reflux; Stage #2: With sodium hydroxide In 1,4-dioxane; water for 0.5h; Stage #3: With hydrogenchloride In water pH=8; |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 20 °C / Cooling with ice 2: chloroform / 48 h / 50 - 60 °C / Cooling with ice View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: water; sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate / tetrahydrofuran / 16 h / 20 °C 2: N,N-dimethyl-formamide / 95 °C View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: potassium hydroxide; 18-crown-6 ether / tetrahydrofuran 2: potassium carbonate / N,N-dimethyl-formamide / 16 h / 20 °C View Scheme |
2-[4-(2-chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium hydroxide; 18-crown-6 ether / tetrahydrofuran 2: potassium carbonate / N,N-dimethyl-formamide / 16 h / 20 °C 3: trifluoroacetic acid / water / 0.17 h / 20 °C View Scheme |
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