Description

Styrylphosphonic Dichloride is a highly reactive organophosphorus compound that serves as a critical building block in advanced chemical synthesis. Its primary value lies in its ability to introduce the styrylphosphonic acid moiety, a functional group of significant interest in materials science and medicinal chemistry. This intermediate is essential for researchers and manufacturers developing specialty polymers, metal-chelating agents, and novel pharmaceutical candidates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of bisphosphonate drugs and other bioactive molecules targeting bone metabolism.
• Polymer Modification: Used to incorporate phosphonate functional groups into polymer backbones, enhancing flame retardancy, adhesion to metal surfaces, and thermal stability.
• Metal Chelation & Surface Treatment: Acts as a versatile ligand for metal ions and a coupling agent for surface modification of metals and metal oxides, improving corrosion resistance and coating adhesion.
• Materials Science Research: Fundamental building block for creating novel organic-inorganic hybrid materials, self-assembled monolayers (SAMs), and advanced coatings.
• Agrochemical Synthesis: Intermediate in the development of new generation herbicides and plant growth regulators containing phosphonate groups.
• Liquid Crystal & OLED Materials: Used in the synthesis of phosphonate-based components for electronic display technologies.

Basic Information

Product Name	Styrylphosphonic Dichloride
CAS No.	4708-07-0
Molecular Formula	C8H7Cl2O2P
Molecular Weight	237.02 g/mol
Synonyms	(2-Phenylethenyl)phosphonic Dichloride; trans-Styrylphosphonic Dichloride; (E)-Styrylphosphonic Dichloride; 2-Phenylethenephosphonic Dichloride; Phosphonic Dichloride, (2-Phenylethenyl)-; Vinylbenzene Phosphonic Dichloride; P,P-Dichloro-P-styrylphosphine Oxide
EINECS	225-196-7

Quality Control

Every batch of Styrylphosphonic Dichloride is manufactured and tested under stringent quality management systems. We provide comprehensive analytical data to ensure the material meets the precise requirements for research and industrial synthesis. A detailed Certificate of Analysis (COA), including purity assay and impurity profile, is supplied with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and moisture-sensitive nature, store under an inert atmosphere (argon or nitrogen) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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