Description

Bis(Methylphenyl) Phenyl Phosphate is a high-purity organophosphate compound valued for its performance as a flame retardant and plasticizer. This chemical is critical for enhancing the fire safety and material properties of various polymer systems. It is primarily needed by manufacturers in the plastics, electronics, and construction materials industries seeking reliable, high-performance additives.

Application

• Primary flame retardant and plasticizer for engineering plastics such as polycarbonate (PC), polyphenylene oxide (PPO), and their blends.
• Key additive in fire-resistant hydraulic fluids and lubricants for industrial and aerospace applications.
• Functional component in electronic encapsulants and circuit board coatings to meet stringent safety standards.
• Plasticizer for vinyl resins and other polymers requiring improved flame retardancy and flexibility.
• Used in the formulation of adhesives, sealants, and specialty coatings where fire resistance is paramount.
• Intermediate in the synthesis of more complex organophosphate esters for specialized applications.

Basic Information

Product Name	Bis(Methylphenyl) Phenyl Phosphate
CAS No.	26446-73-1
Molecular Formula	C20H19O4P
Molecular Weight	354.34 g/mol
Synonyms	Phosphoric Acid, Bis(methylphenyl) Phenyl Ester; Phenyl Bis(methylphenyl) Phosphate; Cresyl Diphenyl Phosphate (CDP); Diphenyl Cresyl Phosphate; Diphenyl Tolyl Phosphate; Tolyl Diphenyl Phosphate; Flame Retardant CDP; Santicizer 141
EINECS	247-693-1

Quality Control

Our Bis(Methylphenyl) Phenyl Phosphate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure it meets precise purity and performance specifications. Certificates of Analysis (COA) detailing all quality parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Acidity (as H3PO4)	≤ 0.05%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50
Density (20°C)	1.190 - 1.210 g/cm³
Refractive Index (20°C)	1.555 - 1.560

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