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:55-18-5
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
Cas:55-18-5
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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
Cas:55-18-5
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
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:55-18-5
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:55-18-5
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam
Cas:55-18-5
Min.Order:1 Kilogram
FOB Price: $20.0 / 30.0
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:55-18-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At presen
Cas:55-18-5
Min.Order:1 Milliliter
FOB Price: $95.0
Type:Trading Company
inquiryN-NITROSODIETHYLAMINE CAS:55-18-5 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 inter
Cas:55-18-5
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:55-18-5
Min.Order:1 Kilogram
Negotiable
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
Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:55-18-5
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryPacking: 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
Zibo 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:55-18-5
Min.Order:10 Gram
FOB Price: $100.0
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:55-18-5
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryOur 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 Scientific and so on.O
Cas:55-18-5
Min.Order:1 Kilogram
FOB Price: $30.0
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,
High quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle
Cas:55-18-5
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
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
Cas:55-18-5
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:55-18-5
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
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:55-18-5
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
1.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:55-18-5
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryWe 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:55-18-5
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
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
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
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:55-18-5
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
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:55-18-5
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:Pharm intermediate
Conditions | Yield |
---|---|
With [NO(1+)*18-crown-6*H(NO3)2(1-)] In dichloromethane at 20℃; for 0.0833333h; | 100% |
With magnesium hydrogen sulfate; silica gel; sodium nitrite In dichloromethane at 20℃; for 1h; Nitrosation; | 98% |
With aluminium trichloride; silica gel; sodium nitrite In dichloromethane at 20℃; for 0.5h; Nitrosation; | 98% |
Conditions | Yield |
---|---|
With tin(IV) chloride; sodium nitrite In tetrachloromethane for 14h; Heating; | 96% |
With bromine; triphenylphosphine In dichloromethane at 20℃; for 0.0166667h; | 92% |
With dinitrogen tetroxide impregnated on activated charcoal In tetrachloromethane for 10h; Heating; | 85% |
Conditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite In water at 70 - 75℃; for 3h; Inert atmosphere; | 68% |
With citrate buffer; sodium nitrite In acetone at 37℃; for 4h; | |
With sodium nitrite In acetone at 37℃; for 4h; effect of varios organic solvents; | |
With sodium nitrite In water at 37℃; for 4h; inhibitory effect of organic and inorganic salts; |
Conditions | Yield |
---|---|
With trifluoroamine oxide at -10℃; for 1.5h; | A 30% B 45% |
N1,N1,N3,N3-tetraethyl-propane-1,2,3-triyltriamine
B
N-Nitrosodiethylamine
Conditions | Yield |
---|---|
With cis-nitrous acid |
diethylammonium, NO3(1-)-salt
N-Nitrosodiethylamine
Conditions | Yield |
---|---|
at 170℃; |
Conditions | Yield |
---|---|
With diethyl ether; nitrosylchloride at -20 - -15℃; |
ethanol
tetranitromethane
acetic acid
triethylamine
N-Nitrosodiethylamine
Conditions | Yield |
---|---|
at 100℃; | |
at 100℃; |
N,N-diethylcarbamyl chloride
A
N-Nitrosodiethylamine
B
diethyl-N-nitroamine
Conditions | Yield |
---|---|
With silver nitrate; acetonitrile |
benzyl nitrite
diethylamine
A
N-Nitrosodiethylamine
B
benzyl alcohol
Conditions | Yield |
---|---|
With ethanol; acetic acid at 100℃; | |
With ethanol; acetic acid at 100℃; | |
With pyridine |
Conditions | Yield |
---|---|
With Nitrite at 25℃; Rate constant; |
diethyl-N-nitroamine
A
formaldoxime
B
N-Nitrosodiethylamine
C
diethyl nitroxide
Conditions | Yield |
---|---|
In gas under 0.2 Torr; Rate constant; Mechanism; Irradiation; steady-state rate constant for unimolecular dissociation (photolysis at 1075.9 cm-1); in the presence of scavenger gases; |
Conditions | Yield |
---|---|
In 2,2,4-trimethylpentane at 240℃; Rate constant; Thermodynamic data; decomposition in sealed tube; | |
In benzene at 240℃; Rate constant; decomposition in sealed tube; | |
In benzene-d6 at 240℃; Rate constant; decomposition in sealed tube; |
n-propyl nitrite
diethylamine
A
propan-1-ol
B
N-Nitrosodiethylamine
Conditions | Yield |
---|---|
With sodium hydroxide In water at 25℃; Rate constant; |
Conditions | Yield |
---|---|
With sodium perchlorate at 25℃; Rate constant; |
N-methyl-N-nitrosotoluene-p-sulfonamide
diethylamine
A
N-Nitrosodiethylamine
B
N-methyl-p-toluenesulfonylamide
Conditions | Yield |
---|---|
In dichloromethane for 16h; Product distribution; Heating; | |
In 1,4-dioxane; water at 25℃; Rate constant; solvent isotope effect (kH/kD); |
Conditions | Yield |
---|---|
With sodium perchlorate at 25℃; Rate constant; |
diethylamine
5-nitro-3,4-diphenyl-4,5-dihydroisoxazole
A
N-Nitrosodiethylamine
B
N,N-diethylphenylacetamide
C
benzonitrile
Conditions | Yield |
---|---|
In benzene for 0.5h; Product distribution; Ambient temperature; other amines and solvents; |
Conditions | Yield |
---|---|
With potassium hydroxide; tetra(n-butyl)ammonium hydroxide; potassium nitrate In dichloromethane; water Product distribution; Mechanism; electrolysis, Pt anode; other amines; | |
With potassium hydroxide; tetra(n-butyl)ammonium hydroxide; potassium nitrate In dichloromethane; water electrolysis, Pt anode; Yield given. Yields of byproduct given; | |
With diethylenetriaminopentaacetic acid; peroxynitrite In phosphate buffer at 37℃; for 0.25h; pH=7.4; Product distribution; Further Variations:; pH-values; |
Conditions | Yield |
---|---|
With potassium nitrososulfonate; sodium carbonate |
diethyl ether
dinitrogen tetraoxide
diethylamine
A
N-Nitrosodiethylamine
B
diethyl-N-nitroamine
Conditions | Yield |
---|---|
at -80℃; |
dichloromethane
dinitrogen tetraoxide
diethylamine
A
N-Nitrosodiethylamine
B
diethyl-N-nitroamine
Conditions | Yield |
---|---|
at 0℃; | |
at -80℃; |
nitric acid
acetic anhydride
diethylamine
A
diethylacetamide
B
N-Nitrosodiethylamine
C
diethyl-N-nitroamine
N,N-diethylcarbamyl chloride
acetonitrile
A
N-Nitrosodiethylamine
B
diethyl-N-nitroamine
C
diethylammonium, NO3(1-)-salt
D
methylammonium carbonate
Conditions | Yield |
---|---|
Produkt5:Distickstoffmonooxid; |
2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphine ruthenium(II) carbonyl
N-Nitrosodiethylamine
Conditions | Yield |
---|---|
In dichloromethane N2-atmosphere; excess nitrosamine, 40°C, 10 min; | 99% |
In dichloromethane N2-atmosphere; excess nitrosamine, 10 min; hexane addn., crystn. (-20°C, 5 d), hand sepn. from Ru-educt; | 71% |
N-Nitrosodiethylamine
[(5,10,15,20-tetraphenylporphyrinato)Fe(N-nitrosodiethylamine)2]ClO4
Conditions | Yield |
---|---|
In toluene (N2); stirring (10 min), addn. of hexane; elem. anal.; | 96% |
N-Nitrosodiethylamine
[(5,10,15,20-tetraphenylporphyrinato)Fe(THF)2]ClO4
[(5,10,15,20-tetraphenylporphyrinato)Fe(N-nitrosodiethylamine)2]ClO4
Conditions | Yield |
---|---|
In toluene byproducts: THF; N2-atmosphere; excess nitrosamine, stirring for 10 min (pptn.); hexane addn., decantation, drying (vac.); elem. anal.; | 96% |
aquanitrosyl(octaethylporphyrinato)ruthenium(II)(1+)
N-Nitrosodiethylamine
[(2,3,7,8,12,13,17,18-octaethylporphyrinato)Ru(NO)(N-nitrosodiethylamine)](1+)
Conditions | Yield |
---|---|
In not given | 82% |
N-Nitrosodiethylamine
[(2,3,7,8,12,13,17,18-octaethylporphyrinato)Ru(NO)(N-nitrosodiethylamine)]BF4
Conditions | Yield |
---|---|
In dichloromethane byproducts: water; N2-atmosphere; excess nitrosamine, stirring for 5 min; hexane addn., cooling to -20°C for 3 d (pptn.), decantation, drying (vac.); elem. anal.; | 82% |
N-Nitrosodiethylamine
carbonyl(5,10,15,20-tetra-p-tolyl-porphyrinato)osmium(II)
Conditions | Yield |
---|---|
In dichloromethane N2-atmosphere; excess nitrosamine, heating and stirring for 10 min; solvent removal, recrystn. (CH2Cl2/hexane, -20°C overnight), decantation, washing (hexane), drying (vac.); elem. anal.; | 74% |
Conditions | Yield |
---|---|
With isocyanate de chlorosulfonyle In diethyl ether for 10h; Ambient temperature; | 72% |
Conditions | Yield |
---|---|
In dichloromethane N2-atmosphere; excess ligand, stirring for 30 min; hexane addn., cooling to -22°C overnight, decantation, washing (hexane), drying (vac., 10 min); elem. anal.; | 70% |
carbonylosmium(II) 2,3,7,8,12,13,17,18-octaethylporphyrinate
N-Nitrosodiethylamine
(2,3,7,8,12,13,17,18-octaethylporphyrinato)Os(CO)(N-nitrosodiethylamine)
Conditions | Yield |
---|---|
In dichloromethane N2-atmosphere; excess nitrosamine, heating and stirring for 10 min; solvent removal, recrystn. (CH2Cl2/hexane, -20°C overnight), decantation, washing (hexane), drying (vac.); elem. anal.; | 66% |
N-Nitrosodiethylamine
[(5,10,15,20-tetraphenylporphyrinato)Fe(THF)2]ClO4
[(5,10,15,20-tetra-p-tolylporphyrinato)Fe(ONNEt2)2]ClO4
Conditions | Yield |
---|---|
In toluene byproducts: C4H8O; (N2, Schlenk) to a toluene-soln. of complex was added nitrosoamine-compound, the mixt. was stirred for 45 min; the solvent was reduced in vol., hexane was added, -22°C overnight, crystals were filtered, washed with hexane, dried in vac.; | 66% |
Conditions | Yield |
---|---|
In toluene for 0.75h; | 66% |
Conditions | Yield |
---|---|
With K2CO3; THF In tetrahydrofuran Irradiation (UV/VIS); Et2NNO and K2CO3 added to soln. of Mo complex in THF, heated under reflux under N2 with W-light irrdn. for 4 h; filtered hot, cooled to room temp., crystals recrystd. from THF; elem. anal.; | A n/a B 60% C n/a D n/a |
Conditions | Yield |
---|---|
With hydrogenchloride; amalgamated zinc | 52% |
With lithium aluminium tetrahydride; diethyl ether | |
With water; zinc |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid at 23℃; for 48h; Irradiation; Inert atmosphere; Sealed tube; Overall yield = 79 percent; regioselective reaction; | A 39% B 40% |
ethylmagnesium iodide
diethyl ether
N-Nitrosodiethylamine
A
ethane
B
aldehyde diethylhydrazone
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
reagiert analog mit Diphenylnitrosamin; |
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
at 100℃; Photolysis; |
Conditions | Yield |
---|---|
With acetic acid; zinc |
Conditions | Yield |
---|---|
With dichloromethane; dihydrogen peroxide; trifluoroacetic anhydride | |
With oxygen; tetraethylammonium perchlorate In acetonitrile at 0℃; electrolysis; | 29 % Turnov. |