Description

4-Chlorophenylphosphonic Acid is a versatile organophosphorus compound that serves as a critical building block in advanced chemical synthesis. Its bifunctional structure, featuring both a phosphonic acid group and a chlorinated aromatic ring, makes it an essential intermediate for creating complex molecules with tailored properties. This high-purity material is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and materials science sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of bioactive molecules, including potential enzyme inhibitors and receptor modulators.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Ligand and Catalyst Preparation: Used to synthesize specialized phosphonate-based ligands for metal catalysis and coordination chemistry.
• Polymer Modification: Functional monomer for incorporating phosphonic acid groups into polymers, improving adhesion, flame retardancy, or metal-binding characteristics.
• Surface Treatment Agent: Employed in the formulation of corrosion inhibitors and surface coatings for metals.
• Research & Development: Valuable reagent in academic and industrial R&D for exploring new chemical entities and material properties.
• Coordination Chemistry: Serves as a chelating agent for the preparation of metal-organic frameworks (MOFs) and other coordination polymers.

Basic Information

Product Name	4-Chlorophenylphosphonic Acid
CAS No.	5431-35-6
Molecular Formula	C6H6ClO3P
Molecular Weight	192.54 g/mol
Synonyms	(4-Chlorophenyl)phosphonic Acid; p-Chlorophenylphosphonic Acid; Phosphonic Acid, P-(4-Chlorophenyl)-; 4-Chlorobenzene phosphonic acid; (p-Chlorophenyl)phosphonic acid; 4-Chloro-benzenephosphonic acid; 4-CPPA; 5431-35-6
EINECS	226-596-8

Quality Control

Our 4-Chlorophenylphosphonic Acid is manufactured under stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets the high-purity standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, identity, and impurity profiles. We are committed to consistent quality and supply reliability for our global B2B partners.

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); ensure the container is sealed after each use to prevent degradation from atmospheric moisture.

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	≤ 20 ppm

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