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4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid CAS 127892-62-0

CAS:127892-62-0
Molecular Formula:C7H9ClN2O2
Molecular Weight:188.61
EINECS:NA

Synonyms:4-CHLORO-3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID; 1H-Pyrazole-5-carboxylic acid, 4-chloro-3-ethyl-1-Methyl-; 4-CHLORO-3-ETHYL-1-METHYL PYRAZOLE-5-CARBOXYLIC ACID; 4-chloro-5-ethyl-2-methyl-3-pyrazolecarboxylic acid; 4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylicaci; 4-chloro-3-Ethyl-1-methyl-1H-Pyrazole-5- carboxylic; Ethyl 4-chloro-5-ethyl-1-methyl- 1H-pyrazole-3-carboxylic acid

What is 4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid CAS 127892-62-0？

4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 127892-62-0) is a high-purity pyrazole derivative widely used as an intermediate in pharmaceuticals, agrochemicals, and fine chemical synthesis. Its unique chloro, ethyl, and methyl substituents provide excellent reactivity and selectivity, making it a versatile building block for advanced organic synthesis.

We supply 4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid with consistent quality, flexible packaging options, and reliable global delivery for both R&D and industrial applications.

Specification

Item	Specification
Boiling point	339.5±42.0 °C(Predicted)
Density	1.40±0.1 g/cm3(Predicted)
Melting point	164 °C
pKa	1.90±0.38(Predicted)
Storage conditions	under inert gas (nitrogen or Argon) at 2-8°C

Application

4-Chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid is a key intermediate used in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. It is widely applied in drug development, herbicide and pesticide production, and in the preparation of substituted pyrazole derivatives for advanced chemical research.