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CAS 824-72-6 Phenylphosphonic dichloride
Overview
Phenylphosphonic dichloride manufacturer (phenylphosphonyl dichloride; PhP(O)Cl₂; CAS 771-56-2; formula C₆H₅PCl₂O) is a reactive aryl phosphonyl chloride used as a key intermediate for making phosphonate esters, phosphonamides, and phosphorus-containing polymer/monomer building blocks.Packaging ranges from 1–25 kg lab/pilot packs to bulk drums, with COA/TDS/SDS and DG-compliant logistics available on request.Stock China Factory Supply
Product Description
CAS 824-72-6 Phenylphosphonic dichloride
Phenylphosphonic dichloride (PhP(O)Cl₂, CAS 771-56-2) is a versatile aryl phosphonyl chloride intermediate widely used in pharmaceuticals, specialty chemicals, flame-retardant polymers, and surface modification.High reactivity, controllable selectivity, and low by-product profiles make it a practical building block from R&D to production. Moisture-sensitive and corrosive—hydrolyzes to release HCl—so handle in dry, inert conditions with suitable HCl scrubbing and follow the SDS.
Phenylphosphonic dichloride — Product Specification
CAS: 771-56-2 | Formula: C6H5PCl2O | Synonyms: Phenylphosphonyl dichloride; PhP(O)Cl2
Identity & Form
| Product form | Colorless to pale-yellow liquid |
|---|---|
| Solubility | Miscible with DCM, toluene, THF, acetonitrile; insoluble in water |
| Odor | Pungent, HCl-evolving on hydrolysis |
| Documents | COA · TDS · SDS · DG documents |
Typical Specification (example)
| Assay (GC) | ≥ 98.0% |
|---|---|
| Hydrolyzables (as HCl) | ≤ 0.50% |
| Phenylphosphonic acid | ≤ 0.50% |
| Water (Karl Fischer) | ≤ 0.10% |
| Color (APHA) | ≤ 50 |
| Appearance | Clear, colorless to pale-yellow; free from visible impurities |
Applications & Handling
| Main uses | Alcoholysis/aminolysis to phosphonate esters and phosphonamides; P-containing monomer/polymer intermediates; surface phosphonate functionalization of oxides/fillers |
|---|---|
| Handling | Moisture-sensitive, corrosive; HCl-releasing on hydrolysis. Operate in dry, inert systems with base scavenger (Et3N/pyridine) and appropriate HCl scrubbing; avoid protic media. |
| Storage | Tightly closed, cool, dry; under inert atmosphere; use compatible (e.g., glass-lined) equipment; keep away from water/bases/oxidants. |
Packaging & Logistics
| Packaging | 1 kg / 5 kg / 25 kg bottles; larger drums on request (with inner liner) |
|---|---|
| Ports | Qingdao · Shanghai · Tianjin |
| To quote (please specify) | Purity grade, pack size, destination country/port, and required documents |
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PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.