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:1904-31-0
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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:1904-31-0
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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
Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
Cas:1904-31-0
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:1904-31-0
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:1904-31-0
Min.Order:1 Kilogram
Negotiable
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:1904-31-0
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
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:1904-31-0
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
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:1904-31-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: 1-Methyl-1H-pyrazol-3-amine CAS: 1904-31-0 MF: C4H7N3 MW: 97.12 EINECS: Triazoles;Pyrazole Mol File: 1904-31-0.mol 1-Methyl-1H-pyrazol-3-amine Structure 1-Methyl-1H-pyrazol-3-amine Chemical Properties Boiling point
Cas:1904-31-0
Min.Order:1 Gram
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:1904-31-0
Min.Order:1 Kilogram
FOB Price: $30.0 / 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
Cas:1904-31-0
Min.Order:0
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inquiryHangzhou 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:1904-31-0
Min.Order:0 Metric Ton
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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
Cas:1904-31-0
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:1904-31-0
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryChemlyte Solutions believe that customers and suppliers deserve much more than what traditional distributors can offer. To grow in today s fast-paced and increasingly competitive market it is essential to be able to quickly adapt to market forces eff
Cas:1904-31-0
Min.Order:100 Gram
Negotiable
Type:Other
inquiryProduct name: 3-Amino-1-Methylpyrazole CAS No.: 1904-31-0 Molecule Formula:C4H7N3 Molecule Weight:97.12 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING IT
Cas:1904-31-0
Min.Order:1 Kilogram
Negotiable
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
Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
Shanghai Finebiotech Co.,Ltd.was established in 2020, which providing professional chemical services. As a customer-oriented company, we have distinguished ourself from others in providing worldwide customers with cost-effective and efficient service
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:1904-31-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:1904-31-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryJinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
Cas:1904-31-0
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryHangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home
Cas:1904-31-0
Min.Order:0 Metric Ton
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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
high 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:Beijing or Guangzhou
Cas:1904-31-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryFredchem focus on CRO/CMO business and its own R&D of API/Intermediates Package:Kilograms/MT Application:Pharmaceutical field Transportation:According to customer request Port:Shanghai
Cas:1904-31-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1-methyl-3-nitro-1H-pyrazole
A
1,1'-dimethyl-3-azoxypyrazole
B
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With hydrazine hydrate; nickel In ethanol Heating; | A 54% B 7.1 g |
4-iodo-1-methyl-3-nitro-1H-pyrazole
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With hydrogenchloride; tin(ll) chloride In water at 30℃; for 2h; Reduction; | 51% |
N-(1-methyl-3-pyrazolyl)-acetoacetamide
A
2,4-dimethyl-2H-pyrazolo<3,4-b>pyridin-6(7H)-one
B
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol for 3h; Heating; | A 21% B 15% |
1-methyl-3-nitro-1H-pyrazole
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With hydrogenchloride; tin(ll) chloride Reduction; | |
With hydrogen In methanol for 3h; |
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 0 - 20℃; | 100% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 2h; | 100% |
In tetrahydrofuran at 0 - 20℃; for 2h; | 100% |
Conditions | Yield |
---|---|
With pyridine In chloroform at 20℃; for 48h; chemoselective reaction; | 99% |
Conditions | Yield |
---|---|
With pyridine In chloroform at 20℃; for 48h; chemoselective reaction; | 99% |
Conditions | Yield |
---|---|
With copper(l) iodide; N-(2,6-dimethylphenyl)-6-hydroxypicolinamide; potassium carbonate In dimethyl sulfoxide at 110℃; | 99% |
2,5-hexanedione
methyl-1 amino-3 pyrazole
3-(2,5-dimethyl-1H-pyrrol-1-yl)-1-methyl-1H-pyrazole
Conditions | Yield |
---|---|
toluene-4-sulfonic acid In toluene for 4h; Reflux; | 98% |
With acetic acid In toluene at 155℃; | 98.1% |
With toluene-4-sulfonic acid In benzene at 115℃; for 4h; | 94% |
methyl-1 amino-3 pyrazole
3-(2,5-dimethyl-1H-pyrrol-1-yl)-1-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With acetic acid In toluene at 155℃; | 98.1% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With copper(l) iodide; N-(2,6-dimethylphenyl)-6-hydroxypicolinamide; potassium carbonate In dimethyl sulfoxide at 110℃; | 98% |
6-bromo-2-methoxypyridine
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With copper(l) iodide; N-(2,6-dimethylphenyl)-6-hydroxypicolinamide; potassium carbonate In dimethyl sulfoxide at 110℃; | 98% |
4-chloro-7-isothiocyanato-7-de(acetamide)colchicine
methyl-1 amino-3 pyrazole
4-chloro-N-[(1-methylpyrazole-3-yl)thiocarbamoyl]deacetyl colchicine
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 80℃; for 2h; Inert atmosphere; | 96% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With hexafluorophosphoric acid; isopentyl nitrite In methanol at -20℃; for 1h; | 95% |
5-chloro-2-methylphenylisothiocyanate
methyl-1 amino-3 pyrazole
1-(5-chloro-2-methyl-phenyl)-3-(1-methyl-1H-pyrazol-3-yl)-thiourea
Conditions | Yield |
---|---|
95% |
(E)-(3-chloro-4-methanesulfonyl-phenyl)-isobutoxyimino-acetic acid
methyl-1 amino-3 pyrazole
(E)-2-(3-chloro-4-methanesulfonyl-phenyl)-2-isobutoxyimino-N-(1-methyl-1H-pyrazol-3-yl)-acetamide
Conditions | Yield |
---|---|
Stage #1: (E)-(3-chloro-4-methanesulfonyl-phenyl)-isobutoxyimino-acetic acid; methyl-1 amino-3 pyrazole With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 0℃; for 2h; Stage #2: With sodium hydrogencarbonate In water | 95% |
2-chloro-5-fluoro-4-(3-nitrophenoxy)-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine
methyl-1 amino-3 pyrazole
5-fluoro-N-(1-methyl-1H-pyrazol-3-yl)-4-(3-nitrophenoxy)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In 1,4-dioxane at 140℃; for 0.75h; Inert atmosphere; Microwave irradiation; | 95% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
In toluene for 1h; Reflux; | 94% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With dihydrogen peroxide; iodine In ethanol; water at 15 - 35℃; for 6h; | 93.1% |
methyl-1 amino-3 pyrazole
5-methylpyrazolodithiazolium chloride
Conditions | Yield |
---|---|
With disulfur dichloride In acetic acid 1) 0 deg C to ambient temp. 2) up to 65 deg C, 3h 3) 65 deg C, 2h; | 93% |
2-(1-((tert-butoxycarbonyl)amino)cyclobutyl)-2-hydroxyacetic acid
methyl-1 amino-3 pyrazole
{1-[hydroxy-(1-methyl-1H-pyrazol-3-ylcarbamoyl)methyl]cyclobutyl}carbamic acid tert-butyl ester
Conditions | Yield |
---|---|
Stage #1: 2-(1-((tert-butoxycarbonyl)amino)cyclobutyl)-2-hydroxyacetic acid; methyl-1 amino-3 pyrazole With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0℃; for 0.166667h; Stage #2: With HATU In N,N-dimethyl-formamide at 20℃; for 2h; | 92% |
Stage #1: 2-(1-((tert-butoxycarbonyl)amino)cyclobutyl)-2-hydroxyacetic acid; methyl-1 amino-3 pyrazole With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0℃; for 0.166667h; Stage #2: With HATU In N,N-dimethyl-formamide at 20℃; for 2h; | 92% |
2-(1-(tert-butoxycarbonylamino)-3,3-difluorocyclobutyl)-2-hydroxyacetic acid
methyl-1 amino-3 pyrazole
{3,3-difluoro-1-[hydroxy-(1-methyl-1H-pyrazol-3-ylcarbamoyl)methyl]cyclobutyl}carbamic acid tert-butyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 0 - 20℃; for 2h; | 92% |
ethyl (2-chloroaceto)acetate
methyl-1 amino-3 pyrazole
5-Chloromethyl-1-methyl-1H-pyrazolo[1,5-a]pyrimidin-7-one
Conditions | Yield |
---|---|
With PPA at 100℃; | 91% |
3-[(1S)-2-tert-butoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]benzoic acid
methyl-1 amino-3 pyrazole
3-[(1S)-2-tert-butoxy-1-methylethoxy]-N-(1-methyl-1H-pyrazol-3-yl)-5-[4-(methylsulfonyl)phenoxy]benzamide
Conditions | Yield |
---|---|
Stage #1: 3-[(1S)-2-tert-butoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]benzoic acid With 1,1'-carbonyldiimidazole In acetonitrile at 25℃; for 2h; Stage #2: methyl-1 amino-3 pyrazole In acetonitrile at 60℃; for 18h; Product distribution / selectivity; | 91% |
Stage #1: 3-[(1S)-2-tert-butoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]benzoic acid With 1,1'-carbonyldiimidazole In tetrahydrofuran at 20℃; for 1.08333h; Stage #2: methyl-1 amino-3 pyrazole In tetrahydrofuran; toluene at 60℃; for 18h; Product distribution / selectivity; |
3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-tert-butoxy-1-methylethoxy]benzoic acid
methyl-1 amino-3 pyrazole
3-[4-(Azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-tert-butoxy-1-methylethoxy]-N-(1-methyl-1H-pyrazol-3-yl)benzamide
Conditions | Yield |
---|---|
Stage #1: 3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-tert-butoxy-1-methylethoxy]benzoic acid With 4-methyl-morpholine; 2-chloro-4,6-dimethoxy-1 ,3,5-triazine In acetonitrile at 0 - 20℃; for 1.3h; Stage #2: methyl-1 amino-3 pyrazole In acetonitrile at 20℃; for 0.333333h; Product distribution / selectivity; | 90% |
Stage #1: 3-[4-(azetidin-1-ylcarbonyl)phenoxy]-5-[(1S)-2-tert-butoxy-1-methylethoxy]benzoic acid With 1,1'-carbonyldiimidazole In acetonitrile at 25℃; for 1.08333h; Stage #2: methyl-1 amino-3 pyrazole In acetonitrile at 50℃; Product distribution / selectivity; | 89% |
methyl-1 amino-3 pyrazole
4-bromo-1-methyl-1H-pyrazol-3-ylamine
Conditions | Yield |
---|---|
With bromine In ethanol at 0 - 15℃; for 1h; | 89.4% |
With sodium hydroxide; bromine In dichloromethane; water |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 15℃; for 12h; | 89.2% |
ortho-bromophenylacetic acid
methyl-1 amino-3 pyrazole
2-(2-bromophenyl)-N-(1-methyl-1H-pyrazol-3-yl)acetamide
Conditions | Yield |
---|---|
Stage #1: ortho-bromophenylacetic acid With oxalyl dichloride In dichloromethane at 0 - 20℃; for 2h; Stage #2: methyl-1 amino-3 pyrazole In dichloromethane at 0 - 20℃; | 88% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; sodium t-butanolate In toluene at 90℃; for 18h; Buchwald-Hartwig Coupling; Inert atmosphere; Sealed tube; | 88% |
Conditions | Yield |
---|---|
In acetic acid for 4h; Heating; | 87.4% |
di(tert-butyl)chlorophosphine
methyl-1 amino-3 pyrazole
P,P-di(tert-butyl)-N-(1-methyl-1H-pyrazol-3-yl)phosphinous amide
Conditions | Yield |
---|---|
With triethylamine at 125℃; for 72h; Inert atmosphere; | 87% |
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene at 85℃; for 2h; Buchwald-Hartwig Coupling; Inert atmosphere; | 87% |
tert-butyl {3-[(2-chloro-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)oxy]phenyl}carbamate
methyl-1 amino-3 pyrazole
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In 1,4-dioxane at 140℃; for 0.75h; Buchwald-Hartwig Coupling; Microwave irradiation; | 87% |
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