Description

5-Methyl-1-Vinyl-1H-Pyrazole-4-Carbaldehyde is a versatile heterocyclic aldehyde building block, primarily used in advanced organic synthesis and pharmaceutical research. Its core value lies in its bifunctional vinyl and formyl groups, which enable its use as a key precursor for constructing complex molecular architectures, including fused pyrazole systems and functionalized ligands. This compound is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a critical 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 pesticides and herbicides, where the pyrazole core contributes to biological activity.
• Ligand and Catalyst Development: Acts as a starting material for synthesizing specialized chelating ligands used in homogeneous catalysis and material science.
• Heterocyclic Chemistry Research: A fundamental building block for constructing more complex nitrogen-containing heterocycles through cyclization and cross-coupling reactions.
• Functional Material Precursor: Employed in the research and development of organic electronic materials and advanced polymers.
• Chemical Biology Probes: Utilized to create labeled compounds and molecular probes for studying biological pathways and enzyme functions.

Basic Information

Product Name	5-Methyl-1-Vinyl-1H-Pyrazole-4-Carbaldehyde
CAS No.	120841-97-6
Molecular Formula	C7H8N2O
Molecular Weight	136.15 g/mol
Synonyms	1-Vinyl-5-methyl-1H-pyrazole-4-carboxaldehyde; 4-Formyl-5-methyl-1-vinylpyrazole; 5-Methyl-1-vinyl-1H-pyrazole-4-carboxaldehyde; 1H-Pyrazole-4-carboxaldehyde, 5-methyl-1-vinyl-; 5-Methyl-1-vinylpyrazole-4-carbaldehyde; 1-Vinyl-5-methylpyrazole-4-carbaldehyde; 4-Carbaldehyde-5-methyl-1-vinylpyrazole
EINECS	Contact for details

Quality Control

Our 5-Methyl-1-Vinyl-1H-Pyrazole-4-Carbaldehyde is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your most demanding synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage or after opening to maintain purity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
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.