Description

2,2'-Isopropylidenebis[4,6-Dibromophenol] is a high-purity brominated phenolic compound, widely recognized for its efficacy as a flame retardant and intermediate. Its value lies in its ability to impart excellent fire resistance to polymers while maintaining good thermal stability and processability. This product is essential for manufacturers in the plastics, electronics, and construction materials industries seeking to enhance the safety and compliance of their products.

Application

• Primary Flame Retardant for engineering thermoplastics such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS), and their blends.
• Reactive Intermediate in the synthesis of advanced brominated epoxy resins and other specialty polymers.
• Additive for Wire & Cable Insulation to meet stringent fire safety standards (e.g., UL 94, RoHS).
• Component in Electronic Encapsulants and circuit board laminates for improved fire resistance.
• Synergistic Agent used alongside antimony trioxide to enhance flame retardant efficiency in various polymer systems.
• Research & Development of novel flame-retardant materials and chemical processes.

Basic Information

Product Name	2,2'-Isopropylidenebis[4,6-Dibromophenol]
CAS No.	97890-15-8
Molecular Formula	C15H12Br4O2
Molecular Weight	627.78 g/mol
Synonyms	Tetrabromobisphenol A (TBBPA); 4,4'-Isopropylidenebis(2,6-dibromophenol); 2,2-Bis(3,5-dibromo-4-hydroxyphenyl)propane; Tetrabromodiphenylolpropane; Brominated Bisphenol A; Fire Guard 8000 (trade name); FR-1524; TBBP-A
EINECS	Contact for details

Quality Control

Our production of 2,2'-Isopropylidenebis[4,6-Dibromophenol] adheres to a strict quality management system. Every batch is analyzed to ensure high purity and consistency, with key parameters including bromine content, melting point, and impurity profiles monitored. Certificates of Analysis (COA) documenting these results are provided and can be tailored to meet specific customer or regulatory 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 oxidizers and heat sources. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	178 - 182 °C
Bromine Content	≥ 58.0 %
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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