Description

Bis(Ditolyl) Isopropylidenedi-p-Phenylene Bis(Phosphate) is a high-performance organophosphorus compound widely recognized for its role as an effective flame retardant and plasticizer. Its primary commercial value lies in enhancing the fire safety and physical properties of various polymer systems without compromising performance. This product is essential for manufacturers in the plastics, electronics, and construction materials industries seeking to meet stringent fire safety regulations.

Application

• As a flame retardant additive in engineering thermoplastics such as polycarbonate (PC), polycarbonate/ABS blends, and polyphenylene oxide (PPO).
• Used in the production of fire-resistant wire and cable insulation and jacketing materials.
• Application in electronic components and housings to achieve UL94 V-0 and other flammability ratings.
• As a plasticizer and stabilizer in specialty polymer formulations to improve processability and thermal stability.
• Utilized in the manufacture of construction materials, including flame-retardant panels and composites.
• Potential use as a reactive intermediate in the synthesis of more complex organophosphorus compounds.

Basic Information

Product Name	Bis(Ditolyl) Isopropylidenedi-p-Phenylene Bis(Phosphate)
CAS No.	93981-32-9
Molecular Formula	C45H42O6P2
Molecular Weight	740.74 g/mol
Synonyms	Bis(2,4-ditolyl) phenyl isopropylidenediphenol diphosphate; Bisphenol A bis(diphenyl phosphate) (BDDP) analog; Tetrakis(2,4-dimethylphenyl) resorcinol bis(diphosphate); Isopropylidenebis[(2,4-dimethylphenyl) phenyl phosphate]; Aryl phosphate ester flame retardant; FR-1 (trade name variant); Phosphoric acid, isopropylidenebis[(2,4-dimethylphenyl) phenyl] ester
EINECS	Contact for details

Quality Control

Our production of Bis(Ditolyl) Isopropylidenedi-p-Phenylene Bis(Phosphate) adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against stringent in-house specifications, which typically include assay, color, acidity, and moisture content. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance processes.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	105 - 115 °C
Acidity (as H3PO4)	≤ 0.1%
Volatiles (Moisture)	≤ 0.5%
Color (APHA)	≤ 100

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