Description

2-(Triphenylphosphoranylidene)Butanedioic Acid Dimethyl Ester is a specialized Wittig reagent, a key intermediate in organic synthesis for the formation of carbon-carbon double bonds. Its primary value lies in enabling the precise and efficient construction of complex molecules, particularly in the synthesis of fine chemicals and advanced materials. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced material sectors who require high-purity building blocks for complex synthesis.

Application

• Pharmaceutical Intermediate: A critical reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly for constructing alkene functionalities in complex drug molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators requiring specific olefin structures.
• Material Science Research: Employed in the development of novel polymers, liquid crystals, and organic electronic materials where controlled double bond formation is crucial.
• Fine Chemical Production: Serves as a key building block in the manufacture of flavors, fragrances, and dyes that contain specific unsaturated components.
• Academic & Industrial R&D: A staple reagent in organic chemistry laboratories for method development and the synthesis of novel organic compounds.

Basic Information

Product Name	2-(Triphenylphosphoranylidene)Butanedioic Acid Dimethyl Ester
CAS No.	1104-78-5
Molecular Formula	C24H23O4P
Molecular Weight	406.41 g/mol
Synonyms	Dimethyl (Triphenylphosphoranylidene)succinate; (Carbethoxymethylene)triphenylphosphorane (related analog); Triphenylphosphoranylidene Succinic Acid Dimethyl Ester; Wittig Reagent for Succinate; Dimethyl 2-(triphenyl-λ5-phosphanylidene)butanedioate; 2-(Triphenylphosphanylidene)butanedioic acid dimethyl ester
EINECS	214-170-7

Quality Control

Our 2-(Triphenylphosphoranylidene)Butanedioic Acid Dimethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for sensitive synthetic applications. Certificates of Analysis (COA) with detailed specifications are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep the container tightly sealed under an inert atmosphere to prevent degradation and moisture uptake. Separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%

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