1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid

Name: 1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid
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CAS No. 50920-65-5
Cat. No. CS-0040900
Purity≥98%
MDL No.MFCD00156147

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1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid|CS-0040900

Structure of 50920-65-5

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General Information

CAS No. 50920-65-5
Cat. No. CS-0040900
Purity ≥98%
MDL No. MFCD00156147
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₁₀N₂O₂
Molecular Weight 154.17
Synonym(s) None
SMILES O=C(C1=CC(C)=NN1CC)O

Description

1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid features a polar carboxylic acid group flanked by electron-rich heterocyclic substituents, enabling robust conjugation in synthetic scaffolds. The ethyl and methyl groups enhance solubility and steric profile, supporting efficient integration into bioactive molecules under standard conditions.

Application

1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid serves as a versatile heterocyclic building block in medicinal chemistry, enabling the synthesis of pyrazole-based scaffolds with defined substitution patterns. Its carboxylic acid functionality facilitates direct coupling reactions and derivatization, while the ethyl and methyl groups provide steric and electronic modulation. The compound exhibits good bench stability and is compatible with standard peptide coupling and esterification protocols, supporting efficient purification and integration into multi-step syntheses.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302
Precautionary Statements : P264-P270-P330-P501

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Computational Chemistry Data

TPSA 55.12
LogP 0.90962
H_Acceptors 3
H_Donors 1
Rotatable_Bonds 2

Other Classifications

Bioactive Molecules Dye and Bio-assay Reagents

Building Blocks Functional Group Carboxylic Acid

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Key Words

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1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid

CAS No. 50920-65-5

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