Description

Triphenylmethylphosphonium is a versatile organophosphorus compound with the CAS number 15912-74-0, widely recognized as a key reagent in organic synthesis. Its primary value lies in its utility as a robust ylide precursor for the Wittig reaction, enabling the efficient formation of carbon-carbon double bonds. This makes it an indispensable material for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to synthesize complex olefins and fine chemicals.

Application

• Wittig Reaction Reagent: Serves as a crucial precursor for generating methylenetriphenylphosphorane, a ylide used for the synthesis of alkenes from carbonyl compounds.
• Pharmaceutical Intermediates: Employed in the synthesis of key intermediates for active pharmaceutical ingredients (APIs), including steroids and other complex molecules.
• Agrochemical Synthesis: Used in the production of certain pesticides and plant growth regulators where specific alkene functionalities are required.
• Material Science Research: Acts as a building block in the development of novel organic materials, including liquid crystals and functional polymers.
• Catalysis & Ligand Chemistry: Can be utilized to prepare phosphonium-based ionic liquids or as a precursor for ligands in transition metal catalysis.
• Academic & R&D Laboratories: A standard reagent for method development and exploratory organic synthesis in research institutions.

Basic Information

Product Name	Triphenylmethylphosphonium
CAS No.	15912-74-0
Molecular Formula	C19H19P
Molecular Weight	278.33 g/mol
Synonyms	Methyltriphenylphosphonium; Triphenylphosphoniummethane; Phosphonium, methyltriphenyl-; Methyltriphenylphosphonium ion; (Methyl)triphenylphosphonium; TPP-Me; MTPP
EINECS	240-058-6

Quality Control

Our Triphenylmethylphosphonium is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay (by titration or HPLC), identification (IR), and impurity profiling to ensure high chemical purity and consistency. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your research or production specifications.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Melting Point	188 - 192 °C
Loss on Drying	≤ 1.0 %

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