3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid

Base Information

• Chemical Name: 3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid
• CAS No.: 26308-42-9
• Molecular Formula: C7H10N2O2
• Molecular Weight: 154.169
• European Community (EC) Number: 821-599-2
• Mol file: 26308-42-9.mol

Synonyms:26308-42-9;3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid;5-Ethyl-2-methyl-2H-pyrazole-3-carboxylic acid;1H-Pyrazole-5-carboxylic acid, 3-ethyl-1-methyl-;5-ethyl-2-methylpyrazole-3-carboxylic acid;SCHEMBL343503;AYPCLZDGADHRDL-UHFFFAOYSA-N;HMS1699A08;MFCD03086079;STL588714;AKOS000302802;SB36277;AM807133;AS-67672;CS-0096252;FT-0601817;EN300-89096;W18574;1H-Pyrazole-5-carboxylicacid,3-ethyl-1-methyl-;A818371;J-016373;Z1198161407;3-Ethyl-1-methyl-1H-pyrazole-5-carboxylic acid, AldrichCPR

Chemical Property of 3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid

Chemical Property:

• Vapor Pressure: 0.000355mmHg at 25°C
• Refractive Index: 1.563
• Boiling Point: 320.839 °C at 760 mmHg
• PKA: 3.11±0.25(Predicted)
• Flash Point: 147.839 °C
• Density: 1.234 g/cm³
• Storage Temp.: 2-8°C
• XLogP3: 0.9
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 2
• Exact Mass: 154.074227566
• Heavy Atom Count: 11
• Complexity: 161

Purity/Quality:

97% ^*data from raw suppliers

3-ethyl-1-methyl-1H-pyrazole-5-carboxylicacid ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCC1=NN(C(=C1)C(=O)O)C

Technology Process of 3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid

There total 4 articles about 3-Ethyl-1-Methyl-1H-Pyrazole-5-Carboxylic Acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

3-ethyl-1-methylpyrazole-5-carboxylic acid ethyl ester (128537-26-8) → 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid (26308-42-9)

Guidance literature:

3-ethyl-1-methylpyrazole-5-carboxylic acid ethyl ester; With sodium hydroxide; In ethanol; Reflux;

With sulfuric acid; pH=2;

DOI:10.1021/jf204778v

Reference yield:

ethyl-2,4-dioxohexanoate (13246-52-1) → 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid (26308-42-9)

Guidance literature:

Multi-step reaction with 3 steps

1.1: hydrazine hydrate; acetic acid / 5 h / 80 °C

2.1: sodium carbonate / dichloromethane / 5 h / 40 - 80 °C

3.1: sodium hydroxide / ethanol / Reflux

3.2: pH 2

With sodium carbonate; hydrazine hydrate; acetic acid; sodium hydroxide; In ethanol; dichloromethane;

DOI:10.1021/jf204778v

Reference yield:

ethyl 3-ethyl-1H-pyrazole-5-carboxylate (26308-40-7) → 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid (26308-42-9)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium carbonate / dichloromethane / 5 h / 40 - 80 °C

2.1: sodium hydroxide / ethanol / Reflux

2.2: pH 2

With sodium carbonate; sodium hydroxide; In ethanol; dichloromethane;

DOI:10.1021/jf204778v

upstream raw materials:

3-ethyl-1-methylpyrazole-5-carboxylic acid ethyl ester

ethyl-2,4-dioxohexanoate

ethyl 3-ethyl-1H-pyrazole-5-carboxylate

Downstream raw materials:

3-ethyl-N-{2-fluoro-5-[(2-{[(2-methylcyclopropyl)carbonyl]amino}imidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-1-methyl-1H-pyrazole-5-carboxamide

N-[2-chloro-5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-3-ethyl-1-methyl-1H-pyrazole-5-carboxamide

N-{2-chloro-5-[(2-{[(2-methylcyclopropyl)carbonyl]amino}imidazo[1,2-b]pyridazin-6-yl)oxy]phenyl}-3-ethyl-1-methyl-1H-pyrazole-5-carboxamide

N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-3-ethyl-1-methyl-1H-pyrazole-5-carboxamide

Post a RFQ

Cas No.:

Product Name:

Quantity:

Please select Metric Ton KG G Pound L ML

Email:

Company name:

Valid Period:

Detailed Requirements:

• Sample
• MOQ
• GMP
• FDA
• Price
  FOB CIF CFR EXW
• Urgent purchase

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

Remove

Submit

1

What can I do for you?
Get Best Price

Get Best Price for 26308-42-9 3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID

Send

Send

Metric Ton KG G Pound L ML

Send

Send