Description

Chloro-Oxo-(4-tert-Butylphenyl)Phosphanium is a specialized organophosphorus compound of significant interest in advanced synthetic chemistry. This chemical serves as a key intermediate or reagent for constructing complex molecular architectures, particularly in the development of novel materials and active pharmaceutical ingredients (APIs). It is primarily sought by research and development teams, as well as production chemists, in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise phosphorus-based functionalization.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those containing phosphorus heterocycles or phosphonium salt motifs.
• Ligand Precursor in Catalysis: Used to develop specialized phosphine-based ligands for transition metal catalysis, enabling more efficient and selective chemical transformations.
• Agrochemical Synthesis: Serves as an intermediate in the production of advanced herbicides, fungicides, or plant growth regulators that incorporate phosphonium or phosphate ester groups.
• Material Science Research: Employed in the creation of novel ionic liquids, flame retardants, or polymers where the phosphonium cation imparts specific thermal or ionic properties.
• Organic Synthesis Reagent: Acts as a phosphorylating or activating agent in multi-step synthetic routes for fine chemicals and complex organic molecules.

Basic Information

Product Name	Chloro-Oxo-(4-tert-Butylphenyl)Phosphanium
CAS No.	75213-01-3
Molecular Formula	C10H14ClOP
Molecular Weight	216.64 g/mol
Synonyms	4-tert-Butylphenylphosphonic dichloride; (4-tert-Butylphenyl)phosphonic dichloride; Phosphonic dichloride, (4-(1,1-dimethylethyl)phenyl)-; p-tert-Butylphenylphosphonic dichloride; Chloro(4-tert-butylphenyl)phosphine oxide; (4-tert-Butylphenyl)phosphonyl chloride
EINECS	Contact for details

Quality Control

Our Chloro-Oxo-(4-tert-Butylphenyl)Phosphanium is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee it meets your precise research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for prolonged storage or after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (NMR)	≥ 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.