Description

(3,5-Dichlorophenyl)Phosphonic Acid CAS NO 89891-38-3 is a high-purity organophosphorus compound characterized by its phosphonic acid functional group attached to a dichlorinated aromatic ring. This structure makes it a valuable key intermediate and ligand in advanced chemical synthesis, particularly for creating complex molecules with specific electronic or steric properties. It is primarily needed by pharmaceutical researchers, agrochemical developers, and specialty chemical manufacturers engaged in catalysis and material science.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs), especially those targeting specific biological pathways.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators, leveraging its aromatic chlorination for bioactivity.
• Ligand in Catalysis: Acts as a chelating ligand in transition metal catalysis for organic transformations, including cross-coupling reactions and polymerizations.
• Material Science Precursor: Employed in the creation of functionalized polymers, metal-organic frameworks (MOFs), and flame-retardant materials.
• Research & Development: A key reagent in academic and industrial R&D for exploring new organophosphorus chemistry and creating specialized chemical libraries.

Basic Information

Item	Detail
Product Name	(3,5-Dichlorophenyl)Phosphonic Acid
CAS No.	89891-38-3
Molecular Formula	C6H5Cl2O3P
Molecular Weight	227.98 g/mol
Synonyms	3,5-Dichlorophenylphosphonic Acid; (3,5-Dichlorophenyl)Phosphonic Acid; Phosphonic Acid, P-(3,5-Dichlorophenyl)-; 3,5-Dichlorobenzenephosphonic Acid; NSC 163081; (3,5-Dichlorophenyl)-Phosphonsaeure (German); Acide (3,5-dichlorophényl)phosphonique (French)
EINECS	Contact for details

Quality Control

Our (3,5-Dichlorophenyl)Phosphonic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing including HPLC, NMR, and titration to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for research and regulated production environments.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of 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	< 20 ppm

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