Description

4,4'-((2,5-Dimethoxy-1,4-Phenylene)Bis(Ethyne-2,1-Diyl))Bis(2-Hydroxybenzaldehyde) is a sophisticated organic building block featuring a central dimethoxy-substituted phenylene core symmetrically extended with ethynyl linkages to salicylaldehyde units. This compound matters as a key precursor for synthesizing advanced functional materials, particularly conjugated polymers and macrocyclic ligands, due to its rigid, linear structure and multiple reactive sites. It is essential for researchers and manufacturers in organic electronics, materials science, and pharmaceutical chemistry who require high-purity intermediates for developing novel polymers, sensors, and complex molecular architectures.

Application

• Organic Electronic Materials: Serves as a critical monomer for the synthesis of conjugated polymers and small molecules used in Organic Light-Emitting Diodes (OLEDs), Organic Photovoltaics (OPVs), and Field-Effect Transistors (OFETs).
• Coordination Chemistry & Ligand Synthesis: Acts as a versatile precursor for creating polydentate Schiff base ligands, which are used to form complexes with transition metals for catalysis and magnetic materials.
• Pharmaceutical Intermediates: Utilized in the research and development of novel drug candidates, particularly those requiring complex, rigid molecular scaffolds.
• Advanced Polymer Research: Employed in the development of high-performance polymers with specific optical, electronic, or mechanical properties for specialty coatings and engineering plastics.
• Chemical Sensing Platforms: The aldehyde and phenolic groups provide sites for functionalization to create selective chemosensors for ion or molecule detection.
• Material Science Research: Used as a building block for Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs) due to its ability to form extended networks.

Basic Information

Item	Details
Product Name	4,4'-((2,5-Dimethoxy-1,4-Phenylene)Bis(Ethyne-2,1-Diyl))Bis(2-Hydroxybenzaldehyde)
CAS No.	791068-98-9
Molecular Formula	C26H18O6
Molecular Weight	426.42 g/mol
Synonyms	2,2'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))bis(6-hydroxybenzaldehyde); 2,5-Bis(4-formyl-3-hydroxyphenylethynyl)-1,4-dimethoxybenzene; 1,4-Bis(4-formyl-3-hydroxyphenylethynyl)-2,5-dimethoxybenzene; 2,5-Dimethoxy-1,4-bis(3-hydroxy-4-ethynylbenzaldehyde)benzene; Salicylaldehyde-based dialkyne derivative; DHPB Derivative; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 4,4'-((2,5-Dimethoxy-1,4-Phenylene)Bis(Ethyne-2,1-Diyl))Bis(2-Hydroxybenzaldehyde) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for research and development applications. While typically supplied as a standard R&D grade, we can tailor synthesis to meet specific purity requirements. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment. For custom grades or compliance with specific standards (e.g., for pharmaceutical development), please contact our technical team.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is easily oxidized (store under inert atmosphere) and is light-sensitive. For long-term storage, consider packaging under an inert gas such as nitrogen or argon in a sealed container. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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