Description

5,5'-Dichlorobiphenyl-2,2'-Dicarboxylic Acid is a high-purity, halogenated biphenyl derivative serving as a critical synthetic intermediate. Its value lies in its rigid, functionalized aromatic structure, which is essential for constructing advanced materials and complex organic molecules. This compound is primarily needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty polymer industries.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring a sterically hindered biphenyl core.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides and fungicides, where the dichloro-substituted biphenyl moiety can impart specific biological activity.
• Ligand Precursor: Serves as a starting material for the preparation of sophisticated chelating ligands used in catalysis and metal-organic frameworks (MOFs).
• Polymer Modification: Functional monomer for introducing aromatic rigidity and polarity into specialty polyesters, polyamides, or epoxy resins to enhance thermal and mechanical properties.
• Material Science Research: Investigated for use in organic electronic materials, such as non-linear optical (NLO) chromophores or as a component in molecular semiconductors.
• Chemical Reference Standard: Utilized as an analytical standard in environmental testing labs for monitoring polychlorinated biphenyl (PCB) derivatives or related compounds.

Basic Information

Product Name	5,5'-Dichlorobiphenyl-2,2'-Dicarboxylic Acid
CAS No.	20872-11-1
Molecular Formula	C14H8Cl2O4
Molecular Weight	311.12 g/mol
Synonyms	2,2'-Biphenyldicarboxylic Acid, 5,5'-Dichloro-; 5,5'-Dichloro[1,1'-biphenyl]-2,2'-dicarboxylic Acid; 5,5'-Dichlorodiphenic Acid; NSC 163184; 5,5'-Dichloro-2,2'-biphenyldicarboxylic Acid; Dichlorodiphenic Acid
EINECS	Contact for details

Quality Control

Our production of 5,5'-Dichlorobiphenyl-2,2'-Dicarboxylic Acid adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Every lot is fully characterized and tested against rigorous internal specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 the container tightly sealed in a dry environment to minimize 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%
Heavy Metals	≤ 20 ppm

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