Description

Tpp CAS NO 917-23-7 is Triphenylphosphine, a versatile organophosphorus compound widely used as a ligand in catalysis and as a reagent in organic synthesis. Its primary value lies in its ability to facilitate critical chemical transformations, including the Mitsunobu reaction and the Wittig reaction, which are fundamental for constructing complex molecules. This product is essential for research laboratories, pharmaceutical intermediates manufacturing, and fine chemical production where precise and efficient synthesis is required.

Application

• As a key ligand in transition metal-catalyzed cross-coupling reactions (e.g., Suzuki, Heck).
• As a stoichiometric reagent in the Wittig reaction for the synthesis of alkenes.
• As a core component in the Mitsunobu reaction for the conversion of alcohols to esters, ethers, and other derivatives.
• In the production of pharmaceutical intermediates and active pharmaceutical ingredients (APIs).
• As a reducing agent for organic peroxides and hydroperoxides.
• In the synthesis of photoinitiators and specialty polymers.
• For the preparation of phosphonium salts used in phase-transfer catalysis.
• In material science for surface modification and nanoparticle synthesis.

Basic Information

Product Name	Tpp (Triphenylphosphine)
CAS No.	917-23-7
Molecular Formula	C18H15P
Molecular Weight	262.29 g/mol
Synonyms	Triphenylphosphine; TPP; Phosphorous Triphenyl; Triphenyl Phosphorus; P,P,P-Triphenylphosphine; Celluflex TPP; NSC 3636; TPP Ligand; 1,1',1''-Phosphinidynetrisbenzene
EINECS	213-036-0

Quality Control

Our Triphenylphosphine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for sensitive synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon) to maintain optimal purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Melting Point	79 - 82 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Triphenylphosphine Oxide	≤ 0.5 %

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