Description

1H-Pyrazole-4-Carboxaldehyde, 3-Ethyl- (9Ci) is a versatile pyrazole-based aldehyde building block, identified by CAS No. 154926-98-4. This compound is valued for its bifunctional reactivity, offering both an aldehyde group and a pyrazole heterocycle for constructing complex molecular architectures. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of new drug candidates, particularly in medicinal chemistry programs targeting kinase inhibitors and other heterocyclic-based therapeutics.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging the pyrazole core for biological activity.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in coordination chemistry and catalytic processes.
• Material Science Research: Employed in the synthesis of organic semiconductors, metal-organic frameworks (MOFs), and other functional organic materials.
• Chemical Biology Probes: Utilized to develop molecular probes and tags for studying biological systems and pathways.
• Custom Synthesis and Contract Manufacturing: A critical building block for custom synthesis houses serving the life sciences sector.

Basic Information

Product Name	1H-Pyrazole-4-Carboxaldehyde, 3-Ethyl- (9Ci)
CAS No.	154926-98-4
Molecular Formula	C6H8N2O
Molecular Weight	124.14 g/mol
Synonyms	3-Ethyl-1H-pyrazole-4-carboxaldehyde; 3-Ethyl-4-formyl-1H-pyrazole; 3-Ethyl-1H-pyrazole-4-carbaldehyde; 154926-98-4; 3-Ethylpyrazole-4-carboxaldehyde; 4-Formyl-3-ethyl-1H-pyrazole
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-4-Carboxaldehyde, 3-Ethyl- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.