Description

Triphenylphosphine Oxide is a versatile organophosphorus compound widely used as a catalyst, ligand, and intermediate in advanced chemical synthesis. Its primary value lies in its ability to act as a powerful ligand for transition metals and as a polar aprotic solvent in specialized reactions, facilitating high-yield processes. This product is essential for R&D and production within the pharmaceutical, agrochemical, and specialty polymer industries, where precise chemical control is paramount.

Application

• Pharmaceutical Intermediate: Key building block and catalyst in the synthesis of active pharmaceutical ingredients (APIs).
• Catalyst & Ligand: Acts as a ligand for transition metals (e.g., palladium, nickel) in cross-coupling reactions like Suzuki and Heck reactions.
• Polymer Industry: Used as a flame retardant additive and a stabilizer in the production of high-performance polymers and resins.
• Agrochemical Synthesis: Intermediate in the manufacture of pesticides, herbicides, and other crop protection agents.
• Extraction Solvent: Employed in the selective extraction and purification of rare earth metals and other inorganic compounds.
• Research & Development: A fundamental reagent in organic chemistry labs for method development and novel compound synthesis.

Basic Information

Product Name	Triphenylphosphine Oxide
CAS No.	791-28-6
Molecular Formula	C18H15OP
Molecular Weight	278.29 g/mol
Synonyms	Triphenylphosphine oxide; TPPO; Phosphine oxide, triphenyl-; Triphenylphosphorus oxide; Triphenyl-oxophosphane; P,P,P-Triphenylphosphine oxide; NSC 5111; TPP=O
EINECS	212-338-8

Quality Control

Our Triphenylphosphine Oxide is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and research applications. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing 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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	156 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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