Description

p-Phenylenedipropionic Acid is a high-purity organic dicarboxylic acid derivative, serving as a critical building block in advanced polymer synthesis and specialty chemical manufacturing. Its value lies in its bifunctional structure, which enables the creation of high-performance materials with tailored thermal and mechanical properties. This compound is essential for R&D chemists and production engineers in the polymer, pharmaceutical intermediate, and liquid crystal industries seeking reliable, high-quality raw materials.

Application

• Polymer Intermediate: A key monomer for synthesizing specialty polyamides, polyesters, and polyurethanes, contributing to enhanced material strength and thermal stability.
• Pharmaceutical Synthesis: Used as a versatile building block in the research and development of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Liquid Crystal Materials: Serves as a core component in the production of advanced liquid crystal polymers (LCPs) and display materials.
• Cross-linking Agent: Functions as an effective cross-linker in resin and coating formulations to improve durability and chemical resistance.
• Organic Synthesis Reagent: Employed in laboratory-scale and industrial organic synthesis for constructing complex molecular architectures.
• Specialty Chemical Production: Acts as a precursor for various fine chemicals, including plasticizers, adhesives, and performance additives.

Basic Information

Product Name	p-Phenylenedipropionic Acid
CAS No.	4251-21-2
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	1,4-Phenylenedipropionic Acid; 4,4'-(1,4-Phenylene)dibutyric Acid; p-Phenylene Di-β-propionic Acid; Terephthaloyldipropionic Acid; Phenylenedipropanoic Acid; 4251-21-2; PPDIPA
EINECS	224-217-5

Quality Control

Our p-Phenylenedipropionic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and compliance with your specifications.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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