Description

Tris(3-Bromophenyl)Phosphine Oxide is a high-value organophosphorus compound featuring a phosphine oxide core substituted with three brominated phenyl rings, making it a versatile intermediate and ligand. Its primary commercial value lies in its utility as a key building block for synthesizing advanced materials and as a ligand precursor in transition metal catalysis. This compound is particularly relevant for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to create novel compounds with specific electronic or steric properties.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring brominated aromatic systems.
• Catalyst Ligand Precursor: Used to generate phosphine ligands for transition metal-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira) in fine chemical synthesis.
• Flame Retardant Synthon: Acts as an intermediate in the production of brominated flame retardants for engineering plastics and polymers.
• Material Science Research: Employed in the development of organic light-emitting diodes (OLEDs) and other electronic materials due to its electron-withdrawing and steric properties.
• Agrochemical Synthesis: Utilized in the creation of novel herbicides and pesticides where the bromophenyl groups impart specific biological activity.
• Liquid Crystal & Polymer Additive: Functions as a modifier or intermediate in the synthesis of specialty polymers and liquid crystal compounds.

Basic Information

Product Name	Tris(3-Bromophenyl)Phosphine Oxide
CAS No.	38019-09-9
Molecular Formula	C18H12Br3OP
Molecular Weight	531.97 g/mol
Synonyms	Tris(3-bromophenyl)phosphine oxide; (3-Bromophenyl)diphenylphosphine oxide; Phosphine oxide, tris(3-bromophenyl)-; Tris(m-bromophenyl)phosphine oxide; 3-Bromophenylphosphine oxide; TBPPO; 38019-09-9; Tris(3-bromophenyl)oxophosphane
EINECS	Contact for details

Quality Control

Our Tris(3-Bromophenyl)Phosphine Oxide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and industrial use. Each lot is analyzed to confirm identity, purity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment and is 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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

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.