Description

Phenylphosphonous Acid 2,6-Bis(1,1-Dimethylethyl)-4-Methylphenyl=2,4-Bis(1,1-Dimethylethyl)Phenyl Ester is a specialized organophosphorus compound valued for its role as a high-performance intermediate and ligand in advanced chemical synthesis. This compound is critical for applications requiring precise molecular control and stability under demanding conditions. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for catalyst development and the synthesis of complex molecules.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly where phosphorus-containing scaffolds are required.
• Catalyst Ligand: Serves as a sophisticated ligand in transition metal catalysis for cross-coupling and other organic transformations, enabling more efficient and selective reactions.
• Agrochemical Synthesis: Employed as a key building block in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer Additive & Stabilizer: Functions as a precursor for flame retardants, antioxidants, and stabilizers in high-performance engineering plastics and resins.
• Material Science Research: Utilized in the development of novel organic electronic materials, metal-organic frameworks (MOFs), and other functional materials.
• Chemical Research & Development: Acts as a versatile reagent for method development and exploring new reaction pathways in academic and industrial laboratories.

Basic Information

Product Name	Phenylphosphonous Acid 2,6-Bis(1,1-Dimethylethyl)-4-Methylphenyl=2,4-Bis(1,1-Dimethylethyl)Phenyl Ester
CAS No.	72102-70-6
Molecular Formula	C31H47O2P
Molecular Weight	482.68 g/mol
Synonyms	2,6-Di-tert-butyl-4-methylphenyl 2,4-di-tert-butylphenyl phenylphosphonite; Bis(2,4-di-tert-butylphenyl) Phenylphosphonite; Phenylphosphonous Acid Bis(2,4-di-tert-butylphenyl) Ester; Irgafos 38; Phosphorous Acid, P-, Bis(2,4-bis(1,1-dimethylethyl)phenyl) Phenyl Ester; Antioxidant 38; Hostanox PAR 38; ULTRANOX 626
EINECS	Contact for details

Quality Control

Every batch of our Phenylphosphonous Acid 2,6-Bis(1,1-Dimethylethyl)-4-Methylphenyl=2,4-Bis(1,1-Dimethylethyl)Phenyl Ester is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards and customer-specific requirements. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment to guarantee traceability and batch-to-batch consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is easily oxidized and should be handled under an inert atmosphere such as nitrogen or argon for long-term storage or after opening to maintain purity and efficacy. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	180 - 185 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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