Description

Chloromethylphosphonic Acid CAS NO 2565-58-4 is a versatile organophosphorus compound characterized by its reactive chloromethyl and phosphonic acid functional groups. This unique structure makes it a valuable intermediate for synthesizing a wide range of specialty chemicals, including complexing agents, scale inhibitors, and biologically active molecules. It is essential for manufacturers and R&D laboratories in the water treatment, agrochemical, and pharmaceutical industries seeking to develop advanced functional materials.

Application

• Key Intermediate for Scale Inhibitors: Used in the synthesis of phosphonate-based antiscalants and corrosion inhibitors for industrial water treatment and cooling systems.
• Agrochemical Synthesis: Serves as a crucial building block for creating novel herbicides, plant growth regulators, and other crop protection agents.
• Pharmaceutical & Biotech Research: Employed in the development of prodrugs, enzyme inhibitors, and other bioactive compounds due to its phosphonate moiety.
• Complexing Agent Precursor: Acts as a starting material for manufacturing chelating agents used in detergent formulations, textile processing, and metal ion control.
• Surface Modification & Functionalization: Utilized to introduce phosphonic acid groups onto material surfaces, enhancing adhesion, corrosion resistance, and biocompatibility.
• Flame Retardant Additive Synthesis: A precursor for phosphorus-containing flame retardants used in polymers and plastics.

Basic Information

Product Name	Chloromethylphosphonic Acid
CAS No.	2565-58-4
Molecular Formula	C1H4ClO3P
Molecular Weight	130.46 g/mol
Synonyms	(Chloromethyl)phosphonic Acid; Chloromethanephosphonic Acid; Phosphonic Acid, (Chloromethyl)-; CMPA; ClCH2PO(OH)2; NSC 88159; Chloromethylphosphonate
EINECS	219-901-8

Quality Control

Our Chloromethylphosphonic Acid is produced under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets exacting standards for consistency and purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as purity, water content, and chloride levels. We adhere to cGMP principles where applicable to support our customers in regulated industries.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Chloride Content	Conforms
Melting Point	Contact for details

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