R & D and manufacturing enterprises have their own stock in stockAppearance:Off-white crystals Storage:Shading, sealed, dry place. Package:According to the clients' requirement Application:pharmaceutical intermediates Transportation:by sea or by air
Cas:37622-90-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryChangzhou Helios Biochemical Co., Ltd is a leading manufacturer and supplier for medical intermediates and pesticide intermediates . We specialize in custom synthesis of benzene ring, pyridine and pyrimidine derivatives to help customers to accelerat
Cas:37622-90-5
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryDayangchem'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:37622-90-5
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:37622-90-5
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryOur Services 1. Certificate Of Analysis (COA) 2. Material Safety Data Sheet (MSDS) 3. Route of synthesis (ROS) 4. Method of Aanlysis (MOA)
Cas:37622-90-5
Min.Order:1 Gram
FOB Price: $8.0
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
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:37622-90-5
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:37622-90-5
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
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:37622-90-5
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryProduct name: 1H-pyrazole-4-carboxylic acid ethyl ester CAS :37622-90-5 Appearance: White solid Content: 99% Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Syntheses Material Intermedia
1.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:37622-90-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support ★.Shortest delivery time . Appearance:Refer to COA Storage:Store in dry, cool and ventilated place Package:Acc
Cas:37622-90-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: Ethyl pyrazole-4-carboxylate CAS: 37622-90-5 MF: C6H8N2O2 MW: 140.14 EINECS: 609-452-9 Mol File: 37622-90-5.mol Ethyl pyrazole-4-carboxylate Structure Ethyl pyrazole-4-carboxylate Chemical Properties Melting point
Cas:37622-90-5
Min.Order:1 Gram
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 prese
Cas:37622-90-5
Min.Order:1 Kilogram
FOB Price: $81.4 / 86.2
Type:Trading Company
inquiryEthyl pyrazole-4-carboxylate CAS:37622-90-5 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 orga
Cas:37622-90-5
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:37622-90-5
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
Our 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 have s
Cas:37622-90-5
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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:37622-90-5
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:37622-90-5
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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:37622-90-5
Min.Order:4 Kilogram
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
Cas:37622-90-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryMassive 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:37622-90-5
Min.Order:1 Gram
FOB Price: $1.0
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
Cas:37622-90-5
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:37622-90-5
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryMelting point 78-80 °C(lit.) Boiling point 138-140 °C3 mm Hg(lit.) Fp 138-140°C/3mm CAS DataBase Reference 37622-90-5(CAS DataBase Reference) NIST Chemistry Reference 4-(C2H5COO)-pyrazole(37622-90-5) Safety Information Ha
Cas:37622-90-5
Min.Order:1 Metric Ton
FOB Price: $5000.0
Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:37622-90-5
Min.Order:1 Gram
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:37622-90-5
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:37622-90-5
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:37622-90-5
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry3-amino-4-pyrazolecarboxylic acid ethyl ester
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid; sodium nitrite In ethanol for 1h; Heating; | 99% |
With hydrogenchloride; acetic acid; sodium nitrite In water at 0℃; for 0.5h; | 80 g |
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In water at 20℃; for 16h; | 99% |
Conditions | Yield |
---|---|
With sulfuric acid for 16h; Reflux; | 97% |
With thionyl chloride at 0 - 20℃; for 3h; | 80% |
With sulfuric acid |
ethyl 2-formyl-3-oxopropanoate
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With hydrazine dihydrochloride In ethanol at 0 - 20℃; for 32h; | 92% |
With hydrazine In ethanol at 0 - 20℃; for 24h; | 86% |
With hydrazine In ethanol at 0 - 20℃; for 17h; | 72.4% |
With hydrazine In ethanol at 20℃; for 17h; | 72.4% |
4-iodopyrazole
ethanol
carbon monoxide
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With triethylamine at 100℃; for 4h; Inert atmosphere; | 90% |
ethyl 1-(hydroxymethyl)-1H-pyrazole-4-carboxylate
A
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With potassium fluoride; 18-crown-6 ether; methyl fluorosulfonate In tetrahydrofuran Heating; |
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With hydrazine hydrate; acetic acid |
ethyl 2-cyanoacetate
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: acetic anhydride / 5 h / 120 °C 2: hydrazine hydrate / ethanol / 8 h / 0 °C 3: sodium nitrite; acetic acid; hydrogenchloride / water / 0.5 h / 0 °C View Scheme |
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: toluene / 2 h / -50 °C 2: antimony(III) fluoride / N,N-dimethyl-formamide / 1 h / 90 °C 3: acetic acid; hydrogenchloride / 0.5 h / 0 °C View Scheme |
ethyl 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylate
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid at 0℃; for 0.5h; Reagent/catalyst; |
4-ethoxycarbonylpyrazole
methyl iodide
ethyl 1-methylpyrazole-4-carboxylate
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 20℃; | 100% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 16h; | 85% |
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran at 25℃; for 1h; Inert atmosphere; Stage #2: methyl iodide In tetrahydrofuran at 60 - 65℃; for 6h; | 83% |
4-ethoxycarbonylpyrazole
(2-bromo-5-methyl-1,3-thiazol-4-yl)methanol
ethyl 1-[(2-bromo-5-methyl-1,3-thiazol-4-yl)methyl]-1H-pyrazole-4-carboxylate
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 0℃; for 2h; Inert atmosphere; | 100% |
4-ethoxycarbonylpyrazole
ethyl 1-({5-[3-(trifluoromethyl)phenyl]thiophen-2-yl}methyl)-1H-pyrazole-4-carboxylate
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; | 100% |
4-ethoxycarbonylpyrazole
p-methoxybenzyl chloride
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 20℃; for 4h; Reflux; Inert atmosphere; | 100% |
With potassium carbonate In acetonitrile for 4h; Reflux; | 100% |
In acetonitrile at 20℃; for 4h; Reflux; | 99% |
4-ethoxycarbonylpyrazole
methylamine
N-methyl-1H-pyrazole-4-carboxamide
Conditions | Yield |
---|---|
In water at 50 - 55℃; for 4h; Inert atmosphere; | 100% |
In water at 65℃; for 2h; |
4-ethoxycarbonylpyrazole
1-(allyloxy)-2-(chloromethyl)benzene
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile for 6h; Reflux; | 100% |
4-ethoxycarbonylpyrazole
sodium chlorodifluoroacetate
ethyl 1-(difluoromethyl)-1H-pyrazole-4-carboxylate
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 100℃; | 100% |
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 100℃; for 40h; |
4-ethoxycarbonylpyrazole
[3-[N-(tert-butoxycarbonyl)amino]phenyl]methyl bromide
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 3h; Reflux; | 100% |
4-ethoxycarbonylpyrazole
(2-trimethylethylsilylethoxy)methyl chloride
ethyl 1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-4-carboxylate
Conditions | Yield |
---|---|
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.25h; Stage #2: (2-trimethylethylsilylethoxy)methyl chloride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 16h; | 99.3% |
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran at 0 - 20℃; for 3h; Inert atmosphere; Stage #2: (2-trimethylethylsilylethoxy)methyl chloride In tetrahydrofuran at 0 - 20℃; for 3h; Inert atmosphere; | 98% |
With sodium hydride In tetrahydrofuran at 0 - 20℃; | 96% |
4-ethoxycarbonylpyrazole
3,5-dibromo-1H-pyrazole-4-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
With bromine; sodium acetate In ethanol at 20℃; for 5h; | 99% |
With bromine; sodium acetate In ethanol; water at 20℃; for 10h; | 92% |
With bromine; sodium acetate In ethanol at 20℃; |
4-ethoxycarbonylpyrazole
dimethylamino sulfonyl chloride
Conditions | Yield |
---|---|
With 1,4-diaza-bicyclo[2.2.2]octane In acetonitrile for 1h; Inert atmosphere; | 99% |
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.333333h; Inert atmosphere; Stage #2: dimethylamino sulfonyl chloride In tetrahydrofuran; mineral oil at 25℃; for 22h; Inert atmosphere; | 91% |
Conditions | Yield |
---|---|
With potassium phosphate; tris-(dibenzylideneacetone)dipalladium(0); tert-butyl XPhos In tert-butyl alcohol at 80℃; Inert atmosphere; | 99% |
4-ethoxycarbonylpyrazole
2-(tert-butyldimethylsilyloxy)ethyl bromide
Conditions | Yield |
---|---|
With caesium carbonate In acetonitrile at 20℃; for 16h; Cooling with ice; Inert atmosphere; regioselective reaction; | 99% |
4-ethoxycarbonylpyrazole
(1-bromoethyl)benzne
Conditions | Yield |
---|---|
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: (1-bromoethyl)benzne In N,N-dimethyl-formamide at 20℃; for 2h; | 99% |
2-chloro-6-nitro-4-quinazolone
4-ethoxycarbonylpyrazole
1-(6-nitro-4-oxo-3,4-dihydro-quinazolin-2-yl)-1H-pyrazole-4-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
In xylenes at 20 - 130℃; for 19h; | 98% |
4-ethoxycarbonylpyrazole
2-chloro-1-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]-piperidin-1-yl}ethanone
1-(2-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]piperidin-1-yl}-2-oxoethyl)-1H-pyrazole-4-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
Stage #1: 4-ethoxycarbonylpyrazole; 2-chloro-1-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]-piperidin-1-yl}ethanone With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 1h; Stage #2: With ammonium chloride In tetrahydrofuran; mineral oil | 98% |
4-ethoxycarbonylpyrazole
ethyl 1-(3'-cyano-4'-neopentyloxyphenyl)-pyrazol-4-carboxylate
Conditions | Yield |
---|---|
With trans-N,N'-dimethyl-1,2-cyclohexyldiamine; copper(l) iodide; potassium carbonate In N,N-dimethyl-formamide at 110℃; for 24h; Inert atmosphere; regioselective reaction; | 98% |
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With copper(l) iodide; potassium carbonate In N,N-dimethyl-formamide at 10℃; for 24h; Inert atmosphere; | 98% |
4-chloromethyl-3,5-dimethylisoxazole
4-ethoxycarbonylpyrazole
ethyl 1-((3,5-dimethylisoxazol-4-yl)methyl)-1H-pyrazole-4-carboxylate
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 16h; Inert atmosphere; | 97% |
With caesium carbonate In N,N-dimethyl-formamide | 80% |
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 12h; | 80% |
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 12h; | 80% |
4-ethoxycarbonylpyrazole
p-Methoxybenzyl bromide
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 20 - 50℃; for 17h; | 97% |
With potassium carbonate In acetone at 20 - 50℃; for 17h; | 97% |
With potassium carbonate In acetone for 12h; Reflux; |
4-ethoxycarbonylpyrazole
1H-pyrazole-4-carbaldehyde
Conditions | Yield |
---|---|
With n-butyllithium; diisobutylaluminium hydride; tert-butyl alcohol In tetrahydrofuran; hexane at 0℃; | 97% |
2-(2-bromoethyl)-2-methyl-1,3-dioxolane
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With caesium carbonate In acetonitrile at 65℃; for 2h; Sealed tube; | 97% |
4-ethoxycarbonylpyrazole
Conditions | Yield |
---|---|
With cyanomethylenetributyl-phosphorane In toluene at 100℃; for 6h; | 97% |
4-ethoxycarbonylpyrazole
1H-pyrazole-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide In water for 2h; Reflux; Inert atmosphere; | 96% |
4-ethoxycarbonylpyrazole
xanthene
Conditions | Yield |
---|---|
With dibenzoyl peroxide In 1,2-dichloro-ethane at 80℃; for 6h; Schlenk technique; | 96% |
4-ethoxycarbonylpyrazole
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In acetonitrile at 45℃; for 10h; Inert atmosphere; Electrochemical reaction; Green chemistry; diastereoselective reaction; | 96% |
4-ethoxycarbonylpyrazole
2-benzyloxy-3-methylbutanoic acid
Conditions | Yield |
---|---|
With 2,4,6-trimethyl-pyridine; tert-butylammonium hexafluorophosphate(V) In dichloromethane for 3h; Molecular sieve; Electrochemical reaction; | 96% |
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