Description

Tetraphenylphosphonium Bromide is a versatile organophosphonium salt widely used as a phase-transfer catalyst and a key reagent in organic synthesis. Its primary value lies in its ability to facilitate reactions between reagents in immiscible phases, significantly improving yields and reaction rates in industrial processes. This high-purity compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where precise and efficient synthesis is critical.

Application

• Phase-Transfer Catalysis (PTC): A highly effective catalyst for alkylation, oxidation, and polymerization reactions, enabling reactions in biphasic systems.
• Pharmaceutical Intermediates: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Serves as a catalyst or initiator in the production of specialized polymers and resins.
• Agrochemical Synthesis: Employed in the manufacture of pesticides, herbicides, and other crop protection agents.
• Material Science: Acts as a precursor or templating agent in the development of advanced materials and ionic liquids.
• Research & Development: A fundamental reagent in organic chemistry labs for method development and novel compound synthesis.
• Dye and Pigment Production: Facilitates key coupling and condensation reactions in colorant manufacturing.

Basic Information

Product Name	Tetraphenylphosphonium Bromide
CAS No.	2751-90-8
Molecular Formula	C24H20BrP
Molecular Weight	419.30 g/mol
Synonyms	TPPB; Tetraphenylphosphonium bromide; Phosphonium, tetraphenyl-, bromide; Tetraphenylphosphonium bromide (TPPBr); Bromotetraphenylphosphorane; Tetraphenylphosphonium bromide, 98+%; Tetraphenylphosphonium bromide, 99%; Tetraphenylphosphonium bromide, for synthesis
EINECS	220-395-6

Quality Control

Our Tetraphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for catalytic and synthetic applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistent quality.

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 product is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	284 - 288 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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