Description

1,4-Benzenedicarboxylic Acid, 1,4-Bis(4-Amino-2-Methylphenyl) Ester is a high-purity, specialized aromatic diamine ester derivative designed for advanced polymer synthesis. This compound serves as a critical building block, offering a unique combination of a rigid terephthalate core with reactive amino functionalities for creating high-performance materials. It is primarily sought by R&D and production teams in the polymer and specialty chemical industries for developing novel polyimides, polyamides, and other high-temperature resistant resins.

Application

• Polymer Intermediate: A key monomer for the synthesis of high-performance polyimides and polyamide-imides, imparting excellent thermal stability and mechanical strength.
• Epoxy Curing Agent: Functions as a high-performance curing agent or hardener for epoxy resin systems, enhancing their thermal and chemical resistance.
• Specialty Resins: Used in the production of advanced engineering plastics, coatings, and adhesives that require superior durability.
• Liquid Crystal Polymers (LCPs): Acts as a monomeric unit in the synthesis of LCPs for electronics and high-precision components.
• Pharmaceutical Intermediate: Employed in the research and development of complex organic molecules and active pharmaceutical ingredients (APIs).
• Cross-linking Agent: Utilized to create cross-linked polymer networks for improved dimensional stability and performance under stress.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, 1,4-Bis(4-Amino-2-Methylphenyl) Ester
CAS No.	958649-84-8
Molecular Formula	C28H24N2O4
Molecular Weight	452.50 g/mol
Synonyms	Bis(4-amino-2-methylphenyl) terephthalate; Terephthalic acid bis(4-amino-2-methylphenyl) ester; 4,4'-(1,4-Phenylenebis(oxy))bis(3-methylaniline); 1,4-Bis(4-amino-2-methylphenoxy)benzene; Terephthaloyl bis(4-amino-o-cresol) ester; DAOT; 4-Amino-2-methylphenyl terephthalate
EINECS	Contact for details

Quality Control

Our production of 1,4-Benzenedicarboxylic Acid, 1,4-Bis(4-Amino-2-Methylphenyl) Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency meet exacting customer and research-grade specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and moisture. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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