Description

Tpp CAS NO 20998-75-8 is a high-purity organophosphorus compound, specifically triphenylphosphine. This versatile chemical reagent is valued for its role as a highly effective reducing agent and ligand in complex organic synthesis. It is essential for manufacturers and R&D facilities in the pharmaceutical, agrochemical, and specialty chemical industries requiring precise and reliable synthetic pathways.

Application

• Pharmaceutical Intermediates: A crucial reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly in Wittig reactions and as a catalyst ligand.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Material Science: Acts as a stabilizer and catalyst in the production of specialty polymers, epoxy resins, and advanced materials.
• Fine Chemical Manufacturing: Employed in various name reactions (e.g., Mitsunobu, Staudinger) for the production of fragrances, dyes, and other fine chemicals.
• Laboratory & Research: A staple reducing agent and nucleophile in academic and industrial research laboratories for method development.

Basic Information

Product Name	Tpp
CAS No.	20998-75-8
Molecular Formula	C18H15P
Molecular Weight	262.29 g/mol
Synonyms	Triphenylphosphine; Triphenylphosphane; Phosphorous triphenyl; TPP; P(C6H5)3; Celluflex TPP; NSC 67675
EINECS	244-148-3

Quality Control

Our Tpp is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and titration methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your project specifications.

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). Due to its property of being easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation and to minimize quality degradation.

Specification

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

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