ChemicalBook > CAS DataBase List > Ethyl 1,3-dimethylpyrazole-5-carboxylate

Ethyl 1,3-dimethylpyrazole-5-carboxylate

Uses

Product Name: Ethyl 1,3-dimethylpyrazole-5-carboxylate
CAS No.: 5744-40-1
Chemical Name: Ethyl 1,3-dimethylpyrazole-5-carboxylate
Synonyms: AKOS PAO-0382;BUTTPARK 91\11-01;RARECHEM AL BI 1315;1,3-dimethyl-5-ethoxycarbonylpyrazole;ETHYL 1,3-DIMETHYLPYRAZOLE-5-CARBOXYLATE;Ethyl 1,3-DiMethyl-5-pyrazolecarboxylate;ethyl 2,5-dimethylpyrazole-3-carboxylate;Ethyl1,3-Dimethylpyrazole-5-carboxylate>Ethyl 1,3-dimethylpyrazole-5-carboxylate 95%;ETHYL 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBOXYLATE
CBNumber: CB5145081
Molecular Formula: C8H12N2O2
Formula Weight: 168.19
MOL File: 5744-40-1.mol

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Ethyl 1,3-dimethylpyrazole-5-carboxylate Property

Melting point:: 40-42 °C
Boiling point:: 80°C 1mm
Density: 1.12±0.1 g/cm3(Predicted)
refractive index: 1.4790 to 1.4830
storage temp.: Keep in dark place,Sealed in dry,Room Temperature
form: clear liquid
pka: 1.03±0.10(Predicted)
color: Light yellow to Yellow to Orange
InChI: InChI=1S/C8H12N2O2/c1-4-12-8(11)7-5-6(2)9-10(7)3/h5H,4H2,1-3H3
InChIKey: ZYSGPOXVDOROJU-UHFFFAOYSA-N
SMILES: N1(C)C(C(OCC)=O)=CC(C)=N1
CAS DataBase Reference: 5744-40-1(CAS DataBase Reference)

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Safety

Hazard Codes: Xi,Xn
Risk Statements: 22-36/37/38
Safety Statements: 24/25-36/37/39-26-23
HazardClass: IRRITANT
HS Code: 29331990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: JRD0206
Product name: Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate
Purity: Aldrich
Packaging: 1g
Price: $107
Updated: 2025/07/31

TCI Chemical

Product number: E1001
Product name: Ethyl 1,3-Dimethylpyrazole-5-carboxylate
Purity: >96.0%(GC)
Packaging: 1g
Price: $59
Updated: 2025/07/31

TRC

Product number: E917410
Product name: Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate
Packaging: 500mg
Price: $65
Updated: 2021/12/16

Frontier Specialty Chemicals

Product number: JK119426
Product name: Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate
Purity: 97%
Packaging: 1g
Price: $78
Updated: 2021/12/16

AK Scientific

Product number: J50964
Product name: Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate
Packaging: 1g
Price: $10
Updated: 2021/12/16

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Ethyl 1,3-dimethylpyrazole-5-carboxylate Chemical Properties,Usage,Production

Uses

1,3-Dimethyl-1H-pyrazole-5-carboxylic acid ethyl ester is a representative compound of pyrazole derivatives. By modifying its structure and introducing different substituents into the pyrazole ring structure, it is expected that pyrazole derivatives with better performance can be obtained.

Chemical Properties

Colorless to light yellow liqui

Synthesis

4027-57-0

616-38-6

5744-40-1

The general procedure for the synthesis of ethyl 1,3-dimethyl-1hydro-pyrazole-5-carboxylate from ethyl 3-methylpyrazole-5-carboxylate and dimethyl carbonate is as follows: 0.1 mol ethyl 3-methyl-5-pyrazolecarboxylate, 0.055 mol dimethyl carbonate (DMC), 100 mL xylene, and 2.0 g Cs2CO3 were mixed, and the reaction was carried out at 130?140°C for 8 hours. Upon completion of the reaction, the mixture was cooled to room temperature and the solvent was removed by rotary evaporation to afford ethyl 1,3-dimethyl-5-pyrazolecarboxylate as an oil. The product was quantitatively analyzed by high performance liquid chromatography (HPLC) with a purity of 97.7% and a yield of 85.8%.

References

[1] Patent: CN107216288, 2017, A. Location in patent: Paragraph 0039; 0040; 0041; 0042

Ethyl 1,3-dimethylpyrazole-5-carboxylate Preparation Products And Raw materials

Raw materials

Ethanol Acetone 2-chloro-6-fluoro-benzoate Diethyl oxalate Sodium Ethyl acetate Hydrochloric acid Dichloromethane Methylhydrazine Sulfuric acid

Preparation Products

1,3-DIMETHYL-1H-PYRAZOLE-5-CARBONITRILE 5-ISOCYANATO-1,3-DIMETHYL-1H-PYRAZOLE 2-BROMO-1-(1,3-DIMETHYL-1H-PYRAZOL-5-YL)ETHANONE 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBALDEHYDE 5-(CHLOROMETHYL)-1,3-DIMETHYL-1H-PYRAZOLE (1,3-DIMETHYL-1H-PYRAZOL-5-YL)METHANOL 1,3-Dimethylpyrazole-5-carboxylic acid 1-(2,5-DIMETHYL-2H-PYRAZOL-3-YL)-ETHANONE 1,3-Dimethyl-1H-pyrazole-5-carbonyl chloride

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View Lastest Price from Ethyl 1,3-dimethylpyrazole-5-carboxylate manufacturers

Henan Aochuang Chemical Co.,Ltd.

Product: Ethyl 1,3-dimethylpyrazole-5-carboxylate 5744-40-1
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 1ton
Release date: 2022-09-23

Henan Fengda Chemical Co., Ltd

Product: Ethyl 1,3-dimethylpyrazole-5-carboxylate 5744-40-1
Price: US $5.00-0.10/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-04-09

Zhuozhou Wenxi import and Export Co., Ltd

Product: Ethyl 1,3-dimethylpyrazole-5-carboxylate 5744-40-1
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-10

5744-40-1, Ethyl 1,3-dimethylpyrazole-5-carboxylateRelated Search:

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ETHYL 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBOXYLATE

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Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate≥ 98%(GC)

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5744-40-1

Pyrazole

Heterocycle