Description

4-Ethynylbenzaldehyde is a versatile aromatic aldehyde building block featuring both an aldehyde and a terminal alkyne functional group. This bifunctional nature makes it a critical intermediate for synthesizing complex organic molecules through cross-coupling and condensation reactions. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity intermediates for constructing novel chemical entities.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of kinase inhibitors and other targeted therapies.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in homogeneous catalysis and material science.
• Polymer and Material Science: Monomer for the synthesis of conjugated polymers and advanced organic materials with specific electronic or optical properties.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organic transformations and synthesizing complex molecular architectures.
• Liquid Crystal and OLED Materials: Intermediate in the production of organic electronic materials for displays and lighting.

Basic Information

Product Name	4-Ethynylbenzaldehyde
CAS No.	63697-96-1
Molecular Formula	C9H6O
Molecular Weight	130.14 g/mol
Synonyms	4-Formylphenylacetylene; p-Ethynylbenzaldehyde; 4-Ethynylbenzenecarboxaldehyde; Benzaldehyde, 4-ethynyl-; 4-Acetylenylbenzaldehyde; 1-Ethynyl-4-formylbenzene; p-Acetylenylbenzaldehyde
EINECS	Contact for details

Quality Control

Our 4-Ethynylbenzaldehyde is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support custom synthesis and can tailor purity grades to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its sensitivity to oxidation and light, minimize exposure to air and light during handling.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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