Description

Triphenylphosphine CAS NO 58079-51-9 is a versatile organophosphorus compound widely used as a ligand in transition metal catalysis and as a reagent in organic synthesis. Its primary value lies in its ability to facilitate a wide range of chemical transformations, including Wittig reactions, Staudinger reductions, and Mitsunobu reactions, making it indispensable for constructing complex molecular architectures. This chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require reliable and high-purity intermediates for their processes.

Application

• As a key ligand in homogeneous catalysis for cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira).
• As a stoichiometric reagent in the Wittig reaction for the synthesis of alkenes from carbonyl compounds.
• Utilized in Mitsunobu reactions for the conversion of alcohols to esters, ethers, and other derivatives.
• Employed in the Staudinger reduction for the conversion of azides to amines.
• Acts as a reducing agent and nucleophilic catalyst in various organic syntheses.
• Used in the production of photoinitiators and as a stabilizer in polymer chemistry.
• Applied in the synthesis of pharmaceutical active ingredients and agrochemical intermediates.
• Serves as a precursor for the preparation of phosphonium salts and other functionalized phosphines.

Basic Information

Product Name	Triphenylphosphine
CAS No.	58079-51-9
Molecular Formula	C18H15P
Molecular Weight	262.29 g/mol
Synonyms	Triphenylphosphane; Phosphorous Triphenyl; TPP; PPh3; Triphenyl Phosphine; (C6H5)3P; Celluflex TPP; NSC 2418; CCRIS 1382; HSDB 5820
EINECS	261-184-2

Quality Control

Our Triphenylphosphine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC, GC, and NMR, to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its nature of being easily oxidized, it is recommended to store under an inert atmosphere such as nitrogen or argon for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	79 - 82 °C
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.