Description

3-Ethynylbenzaldehyde is a versatile aromatic aldehyde building block featuring a reactive ethynyl group. This compound matters for its dual functionality, enabling advanced synthesis through both aldehyde and alkyne coupling reactions. It is primarily needed by researchers and manufacturers in the pharmaceutical and agrochemical industries for developing active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key synthon for the development of small molecule drugs, particularly in kinase inhibitor and antiviral research.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or cross-linking agent in the synthesis of specialty polymers and advanced organic frameworks.
• Ligand & Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis and organocatalysts.
• Chemical Research: A valuable reagent for organic synthesis, including Sonogashira coupling and click chemistry applications.
• Fluorescent Probe & Dye Synthesis: Used as a precursor for constructing conjugated molecular systems with optical properties.

Basic Information

Product Name	3-Ethynylbenzaldehyde
CAS No.	77123-56-9
Molecular Formula	C9H6O
Molecular Weight	130.14 g/mol
Synonyms	m-Ethynylbenzaldehyde; 3-Ethynylbenzenecarboxaldehyde; 3-Formylphenylacetylene; Benzaldehyde, 3-ethynyl-; 3-(Ethynyl)benzaldehyde; m-Formylphenylacetylene; 1-Ethynyl-3-formylbenzene
EINECS	Contact for details

Quality Control

Our 3-Ethynylbenzaldehyde is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity, it is recommended to store under an inert atmosphere to prevent oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details

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