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Ethyl 1,3-dimethylpyrazole-5-carboxylate

CAS No.
5744-40-1
Chemical Name:
Ethyl 1,3-dimethylpyrazole-5-carboxylate
Synonyms
ETHYL 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBOXYLATE;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%
CBNumber:
CB5145081
Molecular Formula:
C8H12N2O2
Molecular Weight:
168.19
MDL Number:
MFCD00233452
MOL File:
5744-40-1.mol
MSDS File:
SDS
Last updated:2026-05-28 01:16:50
Product description Number Pack Size Price
Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Aldrich JRD0206 1g $114
Ethyl 1,3-Dimethylpyrazole-5-carboxylate >96.0%(GC) E1001 1g $50
Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% OR019341 5g $21
Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% OR019341 25g $62
Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% OR019341 100g $218
More product size

Ethyl 1,3-dimethylpyrazole-5-carboxylate Properties

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
pka 1.03±0.10(Predicted)
form clear liquid
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)
UNSPSC Code 12352200
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
Hazard Codes  Xi,Xn
Risk Statements  22-36/37/38
Safety Statements  24/25-36/37/39-26-23
HazardClass  IRRITANT
HS Code  29331990
Storage Class 11 - Combustible Solids
NFPA 704
0
1 0

Ethyl 1,3-dimethylpyrazole-5-carboxylate price More Price(84)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich JRD0206 Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Aldrich 5744-40-1 1g $114 2026-04-30 Buy
TCI Chemical E1001 Ethyl 1,3-Dimethylpyrazole-5-carboxylate >96.0%(GC) 5744-40-1 1g $50 2026-04-30 Buy
Apolloscientific OR019341 Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% 5744-40-1 5g $21 2026-06-04 Buy
Apolloscientific OR019341 Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% 5744-40-1 25g $62 2026-06-04 Buy
Apolloscientific OR019341 Ethyl 1,3-dimethylpyrazole-5-carboxylate 97% 5744-40-1 100g $218 2026-06-04 Buy
Product number Packaging Price Buy
JRD0206 1g $114 Buy
E1001 1g $50 Buy
OR019341 5g $21 Buy
OR019341 25g $62 Buy
OR019341 100g $218 Buy

Ethyl 1,3-dimethylpyrazole-5-carboxylate Chemical Properties,Uses,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

Ethyl 3-methyl-1H-pyrazole-5-carboxylate

4027-57-0

Dimethyl carbonate

616-38-6

Ethyl 1,3-dimethylpyrazole-5-carboxylate

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 130140°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

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ethyl 1,3-dimethylpyrazole-5-carboxylate pictures 2025-09-25 Ethyl 1,3-dimethylpyrazole-5-carboxylate
5744-40-1
$5.00 1KG 98% Henan Fengda Chemical Co., Ltd
Ethyl 1,3-dimethylpyrazole-5-carboxylate pictures 2025-04-04 Ethyl 1,3-dimethylpyrazole-5-carboxylate
5744-40-1
1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
Ethyl 1,3-dimethylpyrazole-5-carboxylate pictures 2021-07-13 Ethyl 1,3-dimethylpyrazole-5-carboxylate
5744-40-1
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
ETHYL 1,3-DIMETHYLPYRAZOLE-5-CARBOXYLATE BUTTPARK 91\11-01 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID ETHYL ESTER AKOS PAO-0382 RARECHEM AL BI 1315 Ethyl 1,3-dimethylpyrazole-5-carboxylate 95% Ethyl 1,3-Dimethyl-1H-pyrazole-5-carboxylate ,97% 1H-Pyrazole-5-carboxylic acid, 1,3-diMethyl-, ethyl ester Ethyl 1,3-DiMethyl-5-pyrazolecarboxylate 2,5-dimethyl-3-pyrazolecarboxylic acid ethyl ester 2,5-dimethylpyrazole-3-carboxylic acid ethyl ester ethyl 2,5-dimethylpyrazole-3-carboxylate 2,5-Dimethyl-2H-pyrazole-3-carboxylic acid ethyl ester 1,3-dimethyl-5-ethoxycarbonylpyrazole Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate≥ 98%(GC) Ethyl 2,5-dimethyl-2H-pyrazole-3-carboxylate 2-[[5-chloro-1-(phenylmethyl)-2-benzimidazolyl]thio]-N-[2-(4-fluorophenyl)ethyl]acetamide Ethyl1,3-Dimethylpyrazole-5-carboxylate> 1,3-Dimethylpyrazole-5-carboxylic Acid Ethyl Ester 1H-Pyrazole-5-carboxylic acid, 1,3-dimethyl-, ethyl ester (9CI, ACI) 1,3-dimethyl-1H-Pyrazole-5-carboxylic acid ethyl ester (9CI ACI) 1,3-Dimethyl-1H-pyrazol-5-carboxylic acid ethyl ester 1,2,4,5,6,7-hexahydropyrazolo[4,5-c]pyridin-3-one 2-[(1-benzyl-5-chloro-1H-benzimidazol-2-yl)sulfanyl]-N-[2-(4-fluorophenyl)ethyl]acetamide Ethyl 1,3-dimethyl-1H-pyrazole-5-carboxylate ETHYL 1,3-DIMETHYL-1H-PYRAZOLE-5-CARBOXYLATE 5744-40-1 Pyrazole Heterocycle