Description

2H-Pyrazole-3-Carbaldehyde is a versatile heterocyclic aldehyde building block essential for advanced organic synthesis. Its reactive formyl group makes it a critical intermediate for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. This compound is primarily sought after by R&D chemists and process development scientists in the life sciences and fine chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory diseases.
• Agrochemical Synthesis: Used in the development of new-generation herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Serves as a starting material for creating specialized pyrazole-based ligands used in homogeneous catalysis.
• Material Science Research: Employed in the synthesis of organic semiconductors, metal-organic frameworks (MOFs), and other functional polymers.
• Chemical Biology Probes: Utilized to develop molecular probes and fluorescent tags for studying biological processes.
• Academic & Contract Research: A valuable reagent for methodological studies and custom synthesis projects in university and CRO laboratories.

Basic Information

Item	Details
Product Name	2H-Pyrazole-3-Carbaldehyde
CAS No.	3920-50-1
Molecular Formula	C4H4N2O
Molecular Weight	96.09 g/mol
Synonyms	1H-Pyrazole-3-carboxaldehyde; 3-Formyl-1H-pyrazole; 3-Pyrazolecarboxaldehyde; Pyrazole-3-carboxaldehyde; 3-Formylpyrazole; 1H-Pyrazole-3-carbaldehyde; 3-Carbaldehyde-1H-pyrazole; 3-Pyrazolealdehyde
EINECS	223-485-5

Quality Control

Our 2H-Pyrazole-3-Carbaldehyde is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates under GMP or ISO guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. This material is easily oxidized and light-sensitive. 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)	≥ 98.0%
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.