Description

Benzaldehyde, 4,4'-(1,2-Ethynediyl)bis[2-hydroxy- is a specialized organic compound featuring a central ethynediyl bridge connecting two substituted benzaldehyde units. This unique molecular architecture makes it a valuable high-purity intermediate for advanced chemical synthesis. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and material science sectors for constructing complex molecules and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Material Science & Polymer Chemistry: Acts as a monomer or cross-linking agent for creating specialty polymers, resins, and advanced organic materials.
• Ligand & Catalyst Development: Employed in the preparation of complex ligands for catalysis and metal-organic frameworks (MOFs).
• Organic Electronic Materials: Investigated for use in the development of organic semiconductors and light-emitting materials.
• Fine Chemical Synthesis: Utilized as a precursor for synthesizing complex dyes, pigments, and flavor/fragrance compounds.

Basic Information

Product Name	Benzaldehyde, 4,4'-(1,2-Ethynediyl)bis[2-hydroxy-
CAS No.	791068-96-7
Molecular Formula	C₁₈H₁₂O₄
Molecular Weight	292.29 g/mol
Synonyms	4,4'-(Ethynediyl)bis(2-hydroxybenzaldehyde); 2,2'-Dihydroxy-4,4'-ethynylenedibenzaldehyde; 4,4'-(1,2-Ethynediyl)bis(2-hydroxybenzaldehyde); Bis(2-formyl-5-hydroxyphenyl)acetylene; 2-Hydroxy-4-[(2-hydroxy-4-formylphenyl)ethynyl]benzaldehyde
EINECS	Contact for details

Quality Control

We supply high-purity research and technical grades of this advanced intermediate. Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request. We adhere to a cGMP-compliant quality management system for traceability and reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is light-sensitive (store away from light). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.