Terephthalaldehyde

Terephthalaldehyde (CAS 623-27-8), also known as 1,4-Benzenedicarboxaldehyde, is a bifunctional aromatic dialdehyde used as a reactive building block and crosslinking agent in polymer chemistry and pharmaceutical synthesis.

Where is Terephthalaldehyde used?

• Polymer and materials science: monomer for synthesizing polyimines
• Covalent organic frameworks and high-performance resins requiring precise crosslink density
• Pharmaceutical and biotech: intermediate in active ingredient synthesis
• Protein crosslinker for diagnostic reagents and bioconjugation workflows
• Personal care: fragrance formulations
• Antimicrobial and preservation applications in industrial disinfection and surface treatment
• Its two aldehyde groups enable controlled condensation and crosslinking reactions.

Commercial specifications

• Technical and high-purity grades, with reagent- and synthesis-grade specifications
• Packaging from kilogram quantities for laboratory and development use to bulk quantities for industrial-scale production