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:873-69-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:873-69-8
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White to light pink powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum Application
Cas:873-69-8
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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
Our 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:873-69-8
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
Cas:873-69-8
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
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:873-69-8
Min.Order:1 Kilogram
FOB Price: $1000.0
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:873-69-8
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
Cas:873-69-8
Min.Order:10 Kilogram
Negotiable
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:873-69-8
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
Best 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
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:873-69-8
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
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
Cas:873-69-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryJ&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
Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
Cas:873-69-8
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiryProduct name: Pyridine-2-Carboxaldoxime CAS No.: 873-69-8 Molecule Formula:C6H6N2O Molecule Weight:122.12 Purity: 99.0% Package: 25kg/drum Description:White to light pink powder Manufacture Standards:Enterprise Standard TESTING I
Cas:873-69-8
Min.Order:1 Kilogram
Negotiable
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:873-69-8
Min.Order:1 Milligram
Negotiable
Type:Trading Company
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:873-69-8
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:873-69-8
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:873-69-8
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:873-69-8
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:873-69-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
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 purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
high 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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
bulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical
Cas:873-69-8
Min.Order:0
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Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With hydroxylamine hydrochloride; sodium acetate In ethanol at 60℃; for 2h; | 100% |
Stage #1: pyridine-2-carbaldehyde With hydroxylamine hydrochloride In ethanol; water at 20℃; for 0.0166667h; Sealed tube; Stage #2: In ethanol; water at 120℃; for 1h; Sealed tube; Microwave irradiation; | 98% |
With hydroxylamine hydrochloride; sodium hydroxide In ethanol; water at 50℃; for 2h; | 93.4% |
Conditions | Yield |
---|---|
With Acetaldehyde oxime; oxygen; 1N,3N,5N-trihydroxy-1,3,5-triazin-2,4,6[1H,3H,5H]-trione In water at 100℃; for 42h; Green chemistry; | 78% |
Conditions | Yield |
---|---|
With hydroxylamine hydrochloride; dihydrogen peroxide; C18H13N2O4V In acetonitrile at 20 - 70℃; for 2.33333h; | 78% |
Conditions | Yield |
---|---|
With tert.-butylnitrite; N-hydroxyphthalimide; copper diacetate In acetonitrile at 80℃; for 24h; Inert atmosphere; | 73% |
With potassium tert-butylate; ammonia 1.) -33 deg C, 1 h, 2.) -33 deg C; Yield given. Multistep reaction; |
asoxime
A
2-hydroxypyridin
B
2-Cyanopyridine
C
2-pyridinealdoxime
D
pyridine-4-carboxylic acid
E
formaldehyd
F
isonicotinamide
Conditions | Yield |
---|---|
With sodium phosphate at 36.9℃; for 4h; Rate constant; rates of decomposition at various pH values and temperatures; |
A
2-hydroxypyridin
B
2-Cyanopyridine
C
2-pyridinealdoxime
D
3-Benzoylpyridine
E
formaldehyd
Conditions | Yield |
---|---|
With sodium phosphate at 36.9℃; for 6h; Rate constant; rates of decomposition at various pH values and temperatures; |
2-pyridinealdoxime
C11H18IN2O2
2-Oximinomethyl-1-<3-(2,2,3,5,5-pentamethyl-1-oxylimidazolidin-4-ylidene)-2-oxopropyl>pyridinium iodide
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide for 30h; | 100% |
Conditions | Yield |
---|---|
In benzene byproducts: H2O; 1:2 molar ratio of (C3H7)3SnOSn(C3H7)3 and hydroxylamine derivate, in dry benzene; removing of water formed by azeotropic distn.; reaction controlled by IR spectra; removing of solvent; vac. distn.; | 100% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 2h; Cooling with ice; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 2h; Cooling with ice; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 3h; Cooling with ice; Inert atmosphere; | 100% |
2-pyridinealdoxime
1,4-bis(bromomethyl)benzene
1-(2-bromomethylbenzyl)-4-hydroxyiminomethylpyridinium bromide
Conditions | Yield |
---|---|
With acetone for 2h; Reflux; | 98% |
In acetone Reflux; | |
In acetone at 20℃; |
Conditions | Yield |
---|---|
With triethylamine In acetonitrile at 20℃; for 3h; | 97% |
With trichloro(trifluoromethanesulfonato)titanium(IV) at 80℃; for 10h; Dehydration; | 95% |
With thionyl chloride; polyvinylpyrrolidone In dichloromethane at 20℃; for 0.25h; Dehydration; | 93% |
2-pyridinealdoxime
phenylhydrazine
pyridine-2-carboxaldehyde-2'-pyridyl-hydrazone
Conditions | Yield |
---|---|
iron(III) perchlorate In 1,2-dichloro-ethane at 20℃; for 1h; | 96% |
2-pyridinealdoxime
(2,4-dinitro-phenyl)-hydrazine
2-pyridyl-2,4-dinitrophenyl ketazine
Conditions | Yield |
---|---|
iron(III) perchlorate In 1,2-dichloro-ethane at 20℃; for 3h; | 95% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 22h; Cooling with ice; Inert atmosphere; | 95% |
2-pyridinealdoxime
N-hydroxypyridine-2-carboximidoyl chloride hydrochloride
Conditions | Yield |
---|---|
With benzyl(trimethyl)ammonium tetrachloroiodate In dichloromethane | 94% |
With chlorine In dichloromethane at -5 - 0℃; for 3h; | 93% |
2-pyridinealdoxime
methyl iodide
pralidoxime iodide
Conditions | Yield |
---|---|
In acetone for 0.0666667h; Microwave irradiation; | 93.5% |
In ethanol for 6h; Heating; | 81% |
In acetonitrile for 6.5h; Reflux; | 69% |
In acetone for 4h; Reflux; | |
In N,N-dimethyl-formamide at 125℃; for 0.166667h; Solvent; Temperature; | 90 %Spectr. |
2-pyridinealdoxime
2-isopropoxy-1,3,2-benzodioxaborole
OC6H4OBONC(H)C5H4N
Conditions | Yield |
---|---|
In benzene byproducts: isopropanol; under anhydrous conditions, to a soln. of borole in benzene added organic compound, mixture refluxed under a fractionating column; i-PrOH removed azeotropically with benzene during 6 h, excess solvent removed, dried under vac., recrystd. from benzene; elem. anal.; | 93% |
Conditions | Yield |
---|---|
Stage #1: 2-pyridinealdoxime With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.166667h; Stage #2: diphenyliodonium tetrafluoroborate In tetrahydrofuran at 20℃; for 1h; | 93% |
Conditions | Yield |
---|---|
Stage #1: 2-pyridinealdoxime With sodium hydrogencarbonate In acetonitrile at 20℃; for 0.25h; Stage #2: Pentafluoropyridine In acetonitrile at 87℃; for 48h; Reflux; | 93% |
2-pyridinealdoxime
2,3-Dimethoxy-6-bromomethylnaphthalene
1-<(6,7-dimethoxy-2-naphthalenyl)methyl>-2-<(hydroxyimino)methyl>pyridinium bromide
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide 1.) 40 deg C, 18 h; 2.) 65 deg C, 1 h; | 92% |
2-pyridinealdoxime
rhenium(I) pentacarbonyl chloride
[ReCl(CO)3(pyridine-2-aldoxime)]
Conditions | Yield |
---|---|
In benzene soln. of Re complex and ligand (1 equiv.) in C6H6 was refluxed for 24 h; evapd. (vac.); recrystd.; elem. anal.; | 92% |
In toluene soln. of Re complex and ligand (1 equiv.) in toluene was refluxed for 24h; evapd. (vac.); recrystd.; |
Conditions | Yield |
---|---|
With triethylamine; dmap In dichloromethane at 20℃; for 14h; | 91% |
Conditions | Yield |
---|---|
With N-benzyl-trimethylammonium hydroxide at 20℃; for 0.5h; Michael condensation; | 91% |
2-pyridinealdoxime
1,3-bis-(bromomethyl)benzene
1-(2-bromomethylbenzyl)-3-hydroxyiminomethylpyridinium bromide
Conditions | Yield |
---|---|
With acetone for 2h; Reflux; | 91% |
In acetone Reflux; | |
In acetone at 20℃; |
2-pyridinealdoxime
methyl p-toluene sulfonate
1-Methyl-2-pyridinium-p-toluolsulfat
Conditions | Yield |
---|---|
In toluene for 3h; Solvent; Reflux; | 91% |
Conditions | Yield |
---|---|
In methanol (N2); slow addn. of Ni salt to a hot soln. of ligand in methanol, refluxat 50°C for 10 min, slow cooling; washing ppt. with cold methanol, drying; elem. anal.; | 90% |
2-pyridinealdoxime
rhenium(I) pentacarbonyl bromide
[ReBr(CO)3(pyridine-2-aldoxime)]
Conditions | Yield |
---|---|
In benzene soln. of Re complex and ligand (1 equiv.) in C6H6 was refluxed for 24 h; evapd. (vac.); recrystd.; elem. anal.; | 90% |
In toluene soln. of Re complex and ligand (1 equiv.) in toluene was refluxed for 24h; evapd. (vac.); recrystd.; |
2-pyridinealdoxime
Methyl methanesulfonate
Contrathion
Conditions | Yield |
---|---|
In acetonitrile at 80 - 85℃; for 7h; Solvent; | 90% |
2-pyridinealdoxime
Conditions | Yield |
---|---|
Stage #1: 2-pyridinealdoxime With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.166667h; Stage #2: bis(3-methylphenyl)iodonium tetrafluoroborate In tetrahydrofuran at 20℃; for 1h; | 90% |
Conditions | Yield |
---|---|
With zinc(II) nitrate; silica gel for 0.0666667h; deoxymation; Irradiation; | 89% |
With cellulose supported Cu-nanoparticles In water at 80℃; for 0.0833333h; Microwave irradiation; Green chemistry; | 79% |
With iodine; sodium dodecyl-sulfate In water at 25 - 40℃; for 4h; | 71% |
With aluminum(III) nitrate nonahydrate; sodium bromide In dichloromethane at 20℃; for 30.5h; | 58% |
Conditions | Yield |
---|---|
With N-benzyl-trimethylammonium hydroxide at 20℃; for 0.666667h; Michael condensation; | 89% |
2-pyridinealdoxime
2-pyridylhydroxyiminomethyl chloride
Conditions | Yield |
---|---|
With N-chloro-succinimide In N,N-dimethyl-formamide at 20℃; for 12h; | 87.1% |
Stage #1: 2-pyridinealdoxime With N-chloro-succinimide In N,N-dimethyl-formamide at 20℃; for 0.166667h; Inert atmosphere; Stage #2: With hydrogenchloride In N,N-dimethyl-formamide at 20 - 50℃; Inert atmosphere; Stage #3: With N-chloro-succinimide In N,N-dimethyl-formamide at 50℃; Inert atmosphere; | 76% |
Stage #1: 2-pyridinealdoxime With N-chloro-succinimide In N,N-dimethyl-formamide at 25 - 30℃; for 8h; Stage #2: With water In N,N-dimethyl-formamide at 0℃; | 70% |
Conditions | Yield |
---|---|
Stage #1: 2-pyridinealdoxime With methanol; sodium Reflux; Inert atmosphere; Stage #2: diethyl germanium dichloride In benzene for 4h; Reflux; Inert atmosphere; | 87% |
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