ChemicalBook >> CAS DataBase List >>2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID

CAS No.
128694-63-3
Chemical Name:
2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID
Synonyms
EU-0083300;ZERO/005391;MLS000850704;SMR000456721;TimTec1_003188;2-methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid;2-methyl-5-(trifluoromethyl)-3-pyrazolecarboxylic acid;Pyrazole-5-carboxylic acid, 3-trifluorromethyl-1-methyl-;1-Methyl-3-(trifluoromethy)-2H-pyrazole-5-caboxylic Acid;2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID
CBNumber:
CB71501950
Molecular Formula:
C6H5F3N2O2
Molecular Weight:
194.11
MDL Number:
MFCD02090853
MOL File:
128694-63-3.mol
MSDS File:
SDS
Last updated:2026-05-28 02:42:13
Product description Number Pack Size Price
2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% PC520519 250mg $21
2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% PC520519 1g $59
2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% PC520519 5g $281
2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% PC520519 25g $1053
2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% PC520519 250mg $21
More product size

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID Properties

Melting point 131-133℃
Boiling point 288.8±40.0 °C(Predicted)
Density 1.56±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
form crystalline powder
pka 2.55±0.25(Predicted)
color White
InChI InChI=1S/C6H5F3N2O2/c1-11-3(5(12)13)2-4(10-11)6(7,8)9/h2H,1H3,(H,12,13)
InChIKey AQUQLOWJSBFHBD-UHFFFAOYSA-N
SMILES N1(C)C(C(O)=O)=CC(C(F)(F)F)=N1

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P261-P280-P305+P351+P338
Risk Statements  22-36/37/38
Safety Statements  26-36
HazardClass  IRRITANT
HS Code  29331990

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID price More Price(62)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific PC520519 2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% 128694-63-3 250mg $21 2026-06-04 Buy
Apolloscientific PC520519 2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% 128694-63-3 1g $59 2026-06-04 Buy
Apolloscientific PC520519 2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% 128694-63-3 5g $281 2026-06-04 Buy
Apolloscientific PC520519 2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% 128694-63-3 25g $1053 2026-06-04 Buy
Apolloscientific PC520519 2-Methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid 98% 128694-63-3 250mg $21 2026-06-04 Buy
Product number Packaging Price Buy
PC520519 250mg $21 Buy
PC520519 1g $59 Buy
PC520519 5g $281 Buy
PC520519 25g $1053 Buy
PC520519 250mg $21 Buy

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID Chemical Properties,Uses,Production

Chemical Properties

White solid

Uses

1-Methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic Acid is used in preparation of arylaminopyridine carboxamides as vanin inhibitors for treatment of vanin-mediated diseases.

Synthesis

Ethyl 1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylate

1236144-18-5

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID

128694-63-3

General procedure for the synthesis of 1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid from ethyl 1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylate: To a 15 mL Schlenk reaction flask containing ethyl 1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylate (1.5 mmol) was added a solution of 1 N sodium hydroxide (2.5 mL), the The resulting mixture was stirred vigorously for 24 h at room temperature. Upon completion of the reaction, the reaction mixture was acidified with 6 N HCl at 0 °C. The resulting solid was collected by filtration and the solid was suspended in dichloromethane. The organic and aqueous layers were separated and the aqueous layer was further extracted with dichloromethane. All organic layers were combined and dried with anhydrous Na2SO4 and subsequently concentrated under reduced pressure to remove the solvent. The residue was purified by silica gel column chromatography (eluent ratio: hexane/EtOAc = 5:1 to 2:1) to afford 1-methyl-3-trifluoromethyl-5-pyrazolecarboxylic acid (275 mg, 95% yield) as a white solid.

References

[1] Tetrahedron Letters, 2017, vol. 58, # 46, p. 4344 - 4347
[2] Angewandte Chemie - International Edition, 2013, vol. 52, # 24, p. 6255 - 6258

2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID Preparation Products And Raw materials

Global( 126)Suppliers
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Capot Chemical Co.,Ltd.
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SIMAGCHEM CORP
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Shanghai UCHEM Inc.
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Blocksynth Pharmaceutical Technology Co.,Ltd
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View Lastest Price from 2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID pictures 2020-01-01 2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID
128694-63-3
$1.00 1KG 99% 200kg Career Henan Chemical Co
1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid(SALTDATA: FREE) 2-methyl-5-(trifluoromethyl)-3-pyrazolecarboxylic acid 2-methyl-5-(trifluoromethyl)pyrazole-3-carboxylic acid EU-0083300 MLS000850704 Pyrazole-5-carboxylic acid, 3-trifluorromethyl-1-methyl- SMR000456721 TimTec1_003188 ZERO/005391 1-Methyl-3-(trifluoromethy)-2H-pyrazole-5-caboxylic Acid 1H-Pyrazole-5-carboxylic acid, 1-methyl-3-(trifluoromethyl)- 1-Methyl-3-(trifluoromethyl)-1H-pyrazol-5-carboxylic acid 2-METHYL-5-TRIFLUOROMETHYL-2H-PYRAZOLE-3-CARBOXYLIC ACID 128694-63-3