Description

2-Methylallyl Triphenylphosphonium Chloride is a versatile organophosphorus salt widely used as a key reagent in synthetic organic chemistry. Its primary value lies in its role as a stable ylide precursor for Wittig olefination reactions, enabling the efficient synthesis of substituted alkenes and complex molecular frameworks. This high-purity intermediate is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where precise control over carbon-carbon double bond formation is critical.

Application

• Wittig Reaction Reagent: A fundamental building block for the synthesis of alkenes, dienes, and other unsaturated compounds via ylide chemistry.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates requiring specific alkene geometries.
• Agrochemical Synthesis: Employed in creating herbicides, fungicides, and plant growth regulators with tailored olefinic side chains.
• Material Science & Polymer Chemistry: Serves as a monomer or cross-linking agent precursor for functional polymers and specialty materials.
• Fine Chemical Production: Facilitates the manufacture of flavors, fragrances, and dyes where specific alkene structures are required.
• Academic & R&D Laboratories: A staple reagent for methodological development and exploratory synthesis in organic chemistry.

Basic Information

Product Name	2-Methylallyl Triphenylphosphonium Chloride
CAS No.	4303-59-7
Molecular Formula	C22H22ClP
Molecular Weight	352.84 g/mol
Synonyms	2-Methyl-2-propen-1-yltriphenylphosphonium chloride; 2-Methylallyltriphenylphosphonium chloride; (2-Methylallyl)triphenylphosphonium chloride; 2-Methylallyl(triphenyl)phosphonium chloride; Prenyltriphenylphosphonium chloride; Isopentenyltriphenylphosphonium chloride; Triphenyl(2-methyl-2-propenyl)phosphonium chloride; 3-Methylbut-2-en-1-yltriphenylphosphonium chloride
EINECS	224-337-8

Quality Control

Our 2-Methylallyl Triphenylphosphonium Chloride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, NMR for structural confirmation, and KF titration for moisture content. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all specifications and test results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%

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