Description

Dimethyldiphenylphosphonium Iodide is a versatile organophosphonium salt with significant utility in advanced organic synthesis. Its primary value lies in its role as a highly effective Wittig reagent precursor, enabling the synthesis of alkenes with precision and high yield. This compound is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to construct complex molecular architectures.

Application

• Wittig Olefination Reactions: A key precursor for generating ylides used in the synthesis of alkenes, dienes, and other unsaturated compounds.
• Pharmaceutical Intermediate Synthesis: Employed in the construction of steroidal frameworks, vitamin analogs, and other active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the synthesis of specific herbicide and pesticide intermediates requiring defined alkene geometry.
• Material Science Research: Serves as a building block for creating phosphonium-based ionic liquids or functional polymers.
• Catalyst Ligand Preparation: Can be utilized to synthesize phosphine ligands for transition metal catalysis.
• Academic & Industrial R&D: A fundamental reagent for methodological development in organic chemistry laboratories worldwide.

Basic Information

Product Name	Dimethyldiphenylphosphonium Iodide
CAS No.	1017-88-5
Molecular Formula	C14H16IP
Molecular Weight	318.15 g/mol
Synonyms	Dimethyl(diphenyl)phosphonium Iodide; Diphenyldimethylphosphonium Iodide; Phosphonium, dimethyldiphenyl-, iodide; (Dimethylphosphonium)diphenyl Iodide; Methyldiphenylphosphonium Iodide (common misnomer); DDPPI; Witting Reagent Salt Precursor
EINECS	213-818-9

Quality Control

Our Dimethyldiphenylphosphonium Iodide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, ensuring traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, it is recommended to handle the material under an inert atmosphere (e.g., nitrogen or argon) for long-term storage or after opening to prevent moisture uptake. Ideal storage temperature is between 2°C and 8°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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