Description

Methyltriphenylphosphonium Iodide is a versatile and highly reactive quaternary phosphonium salt widely used as a key reagent in organic synthesis. Its primary value lies in its role as a robust ylide precursor for the Wittig reaction, enabling the efficient synthesis of alkenes from carbonyl compounds. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where precise carbon-carbon bond formation is critical.

Application

• Wittig Olefination: As a fundamental reagent for the generation of methylenetriphenylphosphorane, facilitating the conversion of aldehydes and ketones into terminal alkenes.
• Pharmaceutical Intermediates: Synthesis of key chiral and non-chiral building blocks for active pharmaceutical ingredients (APIs) and drug discovery compounds.
• Agrochemical Synthesis: Production of intermediates for herbicides, fungicides, and plant growth regulators that require specific alkene functionalities.
• Material Science: Used in the preparation of specialty polymers, liquid crystals, and organic light-emitting diode (OLED) materials.
• Fine Chemical Production: Manufacture of flavors, fragrances, and other high-value specialty chemicals through controlled olefination processes.
• Academic & Industrial R&D: A staple reagent in research laboratories for methodological development and complex molecule construction.

Basic Information

Product Name	Methyltriphenylphosphonium Iodide
CAS No.	20667-19-0
Molecular Formula	C19H18IP
Molecular Weight	404.23 g/mol
Synonyms	Methyltriphenylphosphonium iodide; Triphenylmethylphosphonium iodide; (Methyl)triphenylphosphonium iodide; Phosphonium, methyltriphenyl-, iodide; Methyltriphenylphosphonium iodide (MTPI); MTPI; Methyl(triphenyl)phosphonium iodide; NSC 5111
EINECS	243-940-7

Quality Control

Our Methyltriphenylphosphonium Iodide is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	188 - 192 °C
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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