Description

[1-(Triphenylphosphoranylidene)Ethyl]Phosphonic Acid Diphenyl Ester is a specialized organophosphorus compound widely used as a key reagent in advanced organic synthesis. Its primary value lies in its role as a versatile Wittig-Horner reagent, enabling the efficient formation of carbon-carbon double bonds to construct complex molecular frameworks. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where precise control over olefin synthesis is critical.

Application

• Pharmaceutical Intermediate Synthesis: A crucial reagent for constructing alkenes in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates.
• Agrochemical Manufacturing: Used in the production of advanced pesticides, herbicides, and plant growth regulators requiring specific alkene functionalities.
• Advanced Material Development: Employed in the synthesis of organic light-emitting diodes (OLEDs), liquid crystals, and other functional materials where defined olefin structures are needed.
• Academic & Industrial Research: Serves as a fundamental tool in organic chemistry laboratories for methodology development and the synthesis of novel compounds.
• Fine Chemical Production: Applied in the manufacture of specialty chemicals, flavors, and fragrances that utilize Wittig-Horner olefination strategies.

Basic Information

Product Name	[1-(Triphenylphosphoranylidene)Ethyl]Phosphonic Acid Diphenyl Ester
CAS No.	57356-83-9
Molecular Formula	C32H28O3P2
Molecular Weight	522.50 g/mol
Synonyms	(1-(Triphenylphosphoranylidene)ethyl)phosphonic acid diphenyl ester; Diphenyl (1-(triphenyl-λ5-phosphanylidene)ethyl)phosphonate; (1-Carbethoxyethylidene)triphenylphosphorane phosphonic acid diphenyl ester (related precursor); Wittig-Horner reagent; Horner-Wadsworth-Emmons reagent; Phosphonate ylide reagent; Olefination reagent
EINECS	Contact for details

Quality Control

Our production of [1-(Triphenylphosphoranylidene)Ethyl]Phosphonic Acid Diphenyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Each lot is characterized by advanced analytical techniques including NMR, HPLC, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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