ChemicalBook >> CAS DataBase List >>3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID

CAS No.
26308-42-9
Chemical Name:
3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID
Synonyms
AKOS PAO-0874;CHEMBRDG-BB 4402465;TIMTEC-BB SBB010349;ASINEX-REAG BAS 07751205;3-ETHYL-1-METHYLPYRAZOLE-5-CARBOXYLIC ACID;5-ethyl-2-methyl-3-pyrazolecarboxylic acid;5-ethyl-2-methylpyrazole-3-carboxylic acid;5-ethyl-2-methyl-pyrazole-3-carboxylic acid;5-ETHYL-2-METHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID;3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID
CBNumber:
CB5261846
Molecular Formula:
C7H10N2O2
Molecular Weight:
154.17
MDL Number:
MFCD03086079
MOL File:
26308-42-9.mol
MSDS File:
SDS
Last updated:2026-05-28 03:43:18
Product description Number Pack Size Price
3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 275922 50mg $446
3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 275922 100mg $621
3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 275922 250mg $871
3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 275922 500mg $1197
3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 275922 1g $1409

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Properties

Boiling point 320.8±30.0 °C(Predicted)
Density 1.23±0.1 g/cm3(Predicted)
storage temp. 2-8°C
pka 3.11±0.25(Predicted)
Appearance White to off-white Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H335-H319-H302-H315
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362
Hazard Codes  Xi
HazardClass  IRRITANT

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID price More Price(57)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 275922 3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 26308-42-9 50mg $446 2026-06-03 Buy
Usbiological 275922 3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 26308-42-9 100mg $621 2026-06-03 Buy
Usbiological 275922 3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 26308-42-9 250mg $871 2026-06-03 Buy
Usbiological 275922 3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 26308-42-9 500mg $1197 2026-06-03 Buy
Usbiological 275922 3-Ethyl-1-methyl-1h-pyrazole-5-carboxylic acid Asreported 26308-42-9 1g $1409 2026-06-03 Buy
Product number Packaging Price Buy
275922 50mg $446 Buy
275922 100mg $621 Buy
275922 250mg $871 Buy
275922 500mg $1197 Buy
275922 1g $1409 Buy

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Chemical Properties,Uses,Production

Synthesis

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID ETHYL ESTER

128537-26-8

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID

26308-42-9

General procedure for the synthesis of 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid from ethyl 3-ethyl-1-methyl-1H-pyrazole-5-carboxylate: ethyl 3-ethyl-1-methyl-1H-pyrazole-5-carboxylate (50 mmol), sodium hydroxide (150 mmol), water (120 mL), and ethanol (20 mL) were mixed, and the reaction was stirred under reflux conditions for 4-5 hours. After completion of the reaction, the reaction solution was cooled to room temperature and separated by extraction with ethyl acetate. The aqueous phase was collected and the pH was adjusted to 5-6 with dilute hydrochloric acid, acidified and left to precipitate the product. The precipitate was collected by filtration and dried to give 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid in 4.8 g yield.

References

[1] Journal of Agricultural and Food Chemistry, 2012, vol. 60, # 6, p. 1470 - 1479
[2] Patent: CN106608873, 2017, A. Location in patent: Paragraph 0111; 0112; 0115
[3] Patent: CN106608872, 2017, A. Location in patent: Paragraph 0104; 0107
[4] Chemical Papers, 2017, vol. 71, # 11, p. 2053 - 2061
[5] European Journal of Medicinal Chemistry, 2018, vol. 149, p. 170 - 181

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Preparation Products And Raw materials

3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Suppliers

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3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Spectrum

5-ETHYL-2-METHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID 5-ethyl-2-methyl-3-pyrazolecarboxylic acid 5-ethyl-2-methyl-pyrazole-3-carboxylic acid 5-ethyl-2-methylpyrazole-3-carboxylic acid 3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid(SALTDATA: FREE) 1H-Pyrazole-5-carboxylic acid, 3-ethyl-1-Methyl- TIMTEC-BB SBB010349 3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 3-ETHYL-1-METHYLPYRAZOLE-5-CARBOXYLIC ACID AKOS PAO-0874 CHEMBRDG-BB 4402465 ASINEX-REAG BAS 07751205 26308-42-9