Description

1,2,4,5-Benzene-Tetracarboxylic Acid, Dipropyl Ester is a high-purity organic ester derivative of pyromellitic acid, valued for its role as a versatile chemical intermediate and monomer. Its molecular structure provides excellent thermal stability and reactivity, making it a critical component in the synthesis of advanced polymers and specialty chemicals. This product is essential for manufacturers in the polymer, coatings, and electronics industries seeking to enhance material performance.

Application

• Polymer Synthesis: Key monomer for producing high-performance polyimides and polyesters with superior thermal and mechanical properties.
• Specialty Coatings & Resins: Used in formulating heat-resistant and durable industrial coatings, wire enamels, and insulating varnishes.
• Plasticizers & Additives: Serves as an intermediate for creating specialized plasticizers that improve flexibility and stability in polymer matrices.
• Electronics & Semiconductor Industry: Employed in the production of dielectric materials and photoresists for microelectronics.
• Adhesive & Sealant Formulations: Contributes to the development of high-strength, temperature-resistant adhesives.
• Chemical Intermediate: A crucial building block for further organic synthesis in pharmaceutical and agrochemical research.

Basic Information

Product Name	1,2,4,5-Benzene-Tetracarboxylic Acid, Dipropyl Ester
CAS No.	56941-72-1
Molecular Formula	C18H22O8
Molecular Weight	366.36 g/mol
Synonyms	Dipropyl 1,2,4,5-Benzenetetracarboxylate; Pyromellitic Acid Dipropyl Ester; 1,2,4,5-Benzenetetracarboxylic Acid Tetrapropyl Ester (common misnomer); Benzene-1,2,4,5-tetracarboxylic Acid Dipropyl Ester; PMDA Dipropyl Ester; Tetrapropyl Benzene-1,2,4,5-tetracarboxylate; NSC 163490
EINECS	Contact for details

Quality Control

Our production of 1,2,4,5-Benzene-Tetracarboxylic Acid, Dipropyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

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). Keep away from strong alkalis and incompatible materials. The container must be kept tightly sealed to prevent moisture absorption.

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%
Residue on Ignition	≤ 0.1%

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