Description

1,3-Benzenedicarboxylic Acid,5,5'-Phosphinicobis- is a specialized organophosphorus compound that serves as a key intermediate and functional additive in advanced material synthesis. Its unique structure, combining a benzene dicarboxylic acid core with a phosphinic acid bridge, makes it valuable for imparting flame retardancy, thermal stability, and metal-chelating properties. This chemical is primarily sought by R&D and production teams in the polymer, electronics, and specialty chemical industries for developing high-performance materials.

Application

• As a reactive flame retardant or synergist in engineering plastics, epoxy resins, and polyurethane foams.
• As a precursor or ligand for synthesizing metal-organic frameworks (MOFs) and coordination polymers.
• As a chelating agent or intermediate in the production of specialty catalysts and water treatment chemicals.
• In the formulation of advanced adhesives and coatings to enhance thermal and chemical resistance.
• For research and development of novel phosphorus-containing polymers and high-temperature materials.
• As a potential additive in electrolyte formulations for lithium-ion or other advanced battery systems.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid,5,5'-Phosphinicobis-
CAS No.	315664-57-4
Molecular Formula	C14H10O8P2
Molecular Weight	392.17 g/mol
Synonyms	5,5'-Phosphinicobis(1,3-benzenedicarboxylic acid); Bis(3,5-dicarboxyphenyl)phosphinic acid; Phosphinic acid, P,P-bis(3,5-dicarboxyphenyl)-; 1,3-Benzenedicarboxylic acid, 5,5'-phosphinicobis-; P,P-Bis(3,5-dicarboxyphenyl)phosphinic acid; Isophthalic acid, 5,5'-phosphinicobis- derivative
EINECS	Contact for details

Quality Control

Our production of 1,3-Benzenedicarboxylic Acid,5,5'-Phosphinicobis- adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including purity assay and impurity profiling, to ensure consistency and meet customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm

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