Description

3,3',5,5'-Tetrabromo[1,1'-Biphenyl]-2,2'-Diol is a halogenated biphenyl derivative of significant industrial importance. This compound serves as a highly effective intermediate and building block in advanced organic synthesis, valued for its ability to impart flame retardancy and modify material properties. It is primarily sought by manufacturers in the polymer, electronics, and specialty chemical industries for the development of high-performance additives and functional materials.

Application

• Flame Retardant Intermediate: A key precursor in the synthesis of brominated flame retardants (BFRs) for engineering plastics, textiles, and electronic components.
• Polymer Additive Synthesis: Used to manufacture reactive and additive-type flame retardants for epoxy resins, polycarbonates, and unsaturated polyesters.
• Pharmaceutical Intermediate: Serves as a specialized building block in the synthesis of complex bioactive molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Employed in the production of certain halogenated pesticides and herbicides.
• Liquid Crystal & OLED Materials: Acts as a core structure or intermediate in the development of electronic display materials.
• Research & Development: Utilized in academic and industrial R&D for studying bromination reactions and developing new polymeric materials.

Basic Information

Product Name	3,3',5,5'-Tetrabromo[1,1'-Biphenyl]-2,2'-Diol
CAS No.	21951-40-6
Molecular Formula	C₁₂H₆Br₄O₂
Molecular Weight	501.79 g/mol
Synonyms	3,3',5,5'-Tetrabromobiphenyl-2,2'-diol; 2,2'-Dihydroxy-3,3',5,5'-tetrabromobiphenyl; Tetrabromobisphenol A Intermediate; TBBPA Diol Derivative; 3,3',5,5'-Tetrabromo-2,2'-biphenyldiol; 3,3',5,5'-Tetrabromo-2,2'-dihydroxybiphenyl; Halogenated Biphenol
EINECS	Contact for details

Quality Control

Our 3,3',5,5'-Tetrabromo[1,1'-Biphenyl]-2,2'-Diol is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.