Description

(4-Hydroxy-Phenyl)-Triphenyl-Phosphonium is a versatile organophosphorus compound widely used as a key reagent in organic synthesis. Its primary value lies in its role as a stable phosphonium salt precursor for generating reactive ylide intermediates in the Wittig reaction, a cornerstone methodology for alkene formation. This makes it an essential material for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing complex organic molecules.

Application

• Wittig Reaction Reagent: Serves as a crucial precursor for generating stabilized ylides used in the synthesis of alkenes, particularly those conjugated with aromatic systems.
• Pharmaceutical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates requiring specific olefination steps.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators where precise carbon-carbon double bond formation is critical.
• Material Science Precursor: Acts as a building block for synthesizing functional organic materials, including ligands for catalysis and monomers for advanced polymers.
• Fine Chemical Manufacturing: Applied in the multi-step synthesis of flavors, fragrances, dyes, and other high-value specialty chemicals.
• Academic & Industrial R&D: A fundamental reagent in research laboratories for methodological development and exploring new synthetic pathways.

Basic Information

Item	Details
Product Name	(4-Hydroxy-Phenyl)-Triphenyl-Phosphonium
CAS No.	22883-70-1
Molecular Formula	C24H21OP
Molecular Weight	356.40 g/mol
Synonyms	4-Hydroxyphenyltriphenylphosphonium; p-Hydroxyphenyltriphenylphosphonium; (p-Hydroxyphenyl)triphenylphosphonium; Triphenyl(4-hydroxyphenyl)phosphonium; Phosphonium, triphenyl(4-hydroxyphenyl)-; 1-Hydroxy-4-(triphenylphosphonio)benzene
EINECS	Contact for details

Quality Control

Our (4-Hydroxy-Phenyl)-Triphenyl-Phosphonium is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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 compound is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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