Description

3-Ethynyl-4-Methoxy-Benzaldehyde is a versatile aromatic aldehyde building block characterized by its ethynyl and methoxy functional groups. This compound is highly valued in advanced organic synthesis for its dual reactivity, serving as a key precursor for constructing complex molecular architectures. It is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for the development of novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of potential drug candidates, particularly in oncology and CNS research.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the production of specialty polymers and advanced organic frameworks (MOFs/COFs).
• Ligand and Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis and asymmetric synthesis.
• Fluorescent Probe and Dye Synthesis: Acts as a key intermediate for constructing conjugated systems used in imaging agents and organic electronic materials.
• Academic and Contract Research: Essential for methodological development and exploratory chemistry in university and CRO laboratories.

Basic Information

Product Name	3-Ethynyl-4-Methoxy-Benzaldehyde
CAS No.	160625-49-0
Molecular Formula	C10H8O2
Molecular Weight	160.17 g/mol
Synonyms	4-Methoxy-3-ethynylbenzaldehyde; 3-Ethynyl-4-methoxybenzaldehyde; 4-Methoxy-3-[(trimethylsilyl)ethynyl]benzaldehyde (precursor); 3-Ethynylanisaldehyde; 4-Formyl-2-methoxyphenylacetylene
EINECS	Contact for details

Quality Control

Our 3-Ethynyl-4-Methoxy-Benzaldehyde is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with customer specifications. Our quality commitment supports applications requiring high-purity intermediates for research and scale-up.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider 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
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.