Description

2,5-Diaminoterephthalic Acid Diethyl Ester is a high-purity, functionalized aromatic diester compound that serves as a critical advanced intermediate in organic synthesis. Its value lies in the strategic positioning of two amino groups on the phthalate core, enabling its use as a versatile building block for complex heterocycles and functional materials. This product is essential for R&D and production teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and sophisticated molecular architectures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex heterocyclic compounds, including quinoxalines and other nitrogen-containing scaffolds with potential biological activity.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and plant growth regulators that require specific amino-functionalized aromatic structures.
• Functional Dye & Pigment Manufacturing: Core monomer for producing specialized dyes, fluorescent markers, and organic pigments where diaminoterephthalate derivatives impart specific optical properties.
• Polymer & Material Science: Used in the creation of novel polyimides, polyamides, and other high-performance polymers that benefit from the incorporation of diamino-aromatic monomers.
• Coordination Chemistry & Ligand Synthesis: Serves as a starting material for synthesizing chelating ligands used in catalysis, metal-organic frameworks (MOFs), and sensor technologies.
• Organic Electronic Materials: Investigated as a precursor for electron-transport materials or emissive layers in OLEDs and other optoelectronic devices.

Basic Information

Product Name	2,5-Diaminoterephthalic Acid Diethyl Ester
CAS No.	15403-46-0
Molecular Formula	C14H18N2O4
Molecular Weight	278.30 g/mol
Synonyms	Diethyl 2,5-diaminoterephthalate; 2,5-Diamino-1,4-benzenedicarboxylic Acid Diethyl Ester; Terephthalic Acid, 2,5-Diamino-, Diethyl Ester; 1,4-Benzenedicarboxylic acid, 2,5-diamino-, diethyl ester; Diethyl 2,5-diamino-1,4-benzenedicarboxylate; 2,5-Diaminoterephthalic Acid Diethyl Ester; 15403-46-0; Diethyl 2,5-diaminobenzene-1,4-dicarboxylate
EINECS	Contact for details

Quality Control

Our 2,5-Diaminoterephthalic Acid Diethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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