Description

3,5-Diisopropylphenyl 4-Isopropylphenyl Phenyl Phosphate is a specialized organophosphate compound, a key intermediate in the synthesis of advanced materials and functional additives. Its value lies in its unique sterically hindered aromatic structure, which imparts enhanced thermal stability and compatibility in high-performance polymer systems. This chemical is essential for R&D and production in sectors requiring tailored flame retardants, high-temperature plasticizers, and specialty polymer modifiers.

Application

• As a high-performance flame retardant synergist in engineering plastics and thermoset resins.
• As a key monomer or intermediate in the synthesis of specialty phosphate esters for advanced lubricant and hydraulic fluid formulations.
• As a thermal stabilizer and plasticizer for high-temperature polymer applications, including wire and cable insulation.
• In research and development of novel organophosphorus ligands for catalytic systems.
• As a functional additive to modify the rheological and surface properties of specialty coatings and adhesives.
• Potential use as an intermediate in the development of extractants for metal ion separation processes.

Basic Information

Product Name	3,5-Diisopropylphenyl 4-Isopropylphenyl Phenyl Phosphate
CAS No.	1391051-71-0
Molecular Formula	C27H33O4P
Molecular Weight	452.52 g/mol
Synonyms	Phenyl bis(4-isopropylphenyl) phosphate (3,5-diisopropyl substituted); Tris(4-isopropylphenyl) phosphate (isomer); Aryl phosphate ester; Phosphoric acid, phenylbis(4-(1-methylethyl)phenyl) ester; Organophosphate flame retardant intermediate; Sterically hindered triaryl phosphate; Bisphenol-A independent phosphate ester
EINECS	Contact for details

Quality Control

Every batch of 3,5-Diisopropylphenyl 4-Isopropylphenyl Phenyl Phosphate is manufactured and tested under a strict quality management system. We ensure product integrity through comprehensive analytical methods including HPLC, GC, NMR, and FTIR to verify identity, purity, and consistency. A Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to guarantee it meets your precise application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and moisture. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acidity (Titration)	≤ 0.1%
Specific Gravity (25°C)	1.10 - 1.20
Refractive Index (20°C)	1.530 - 1.550

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