Description

Terephthalaldehyde CAS NO 623-27-8 is a high-purity aromatic dialdehyde, serving as a critical bifunctional building block in advanced organic synthesis. Its value lies in its symmetrical structure and two reactive aldehyde groups, enabling the construction of complex molecular frameworks. This compound is essential for research and production in the pharmaceutical, agrochemical, and polymer industries, where it is used to create active ingredients, ligands, and specialty monomers.

Application

• Pharmaceutical Intermediate: Key precursor in synthesizing active pharmaceutical ingredients (APIs), particularly for drugs targeting metabolic and central nervous system disorders.
• Ligand Synthesis: Used to create sophisticated chelating agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing high-performance polymers, polyesters, and resins with enhanced thermal stability.
• Agrochemical Synthesis: Building block for manufacturing advanced herbicides, fungicides, and plant growth regulators.
• Organic Synthesis & Research: A versatile reagent for constructing heterocyclic compounds, Schiff bases, and other complex organic molecules in R&D laboratories.
• Dye & Pigment Manufacturing: Intermediate in the production of specialized dyes and optical brighteners.

Basic Information

Product Name	Terephthalaldehyde
CAS No.	623-27-8
Molecular Formula	C8H6O2
Molecular Weight	134.13 g/mol
Synonyms	1,4-Benzenedicarboxaldehyde; Terephthalic Aldehyde; p-Phthalaldehyde; p-Formylbenzaldehyde; p-Diformylbenzene; 1,4-Diformylbenzene; TPA; PTA
EINECS	210-794-9

Quality Control

Our Terephthalaldehyde is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon). Keep away from strong oxidizing agents, strong bases, and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	114 - 118 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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