Description

Methyl(Triphenyl)Phosphonium Chloride is a versatile and highly reactive organophosphorus 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 makes it an indispensable material for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries seeking to construct complex molecular architectures.

Application

• Wittig Olefination: As a precursor to methylenetriphenylphosphorane, it is a fundamental reagent for converting aldehydes and ketones into terminal alkenes (methylene compounds).
• Pharmaceutical Intermediates: Critical for synthesizing key alkene-containing intermediates in active pharmaceutical ingredient (API) development and production.
• Agrochemical Synthesis: Used in the manufacture of certain herbicides, fungicides, and plant growth regulators that require alkene functional groups.
• Fine Chemical Production: Employed in the synthesis of flavors, fragrances, and specialty chemicals where precise alkene installation is required.
• Polymer & Material Science: Serves as a monomer precursor or modifying agent in the development of functional polymers and advanced organic materials.
• Academic & Industrial R&D: A staple reagent in chemical research laboratories for methodology development and novel compound library synthesis.

Basic Information

Product Name	Methyl(Triphenyl)Phosphonium Chloride
CAS No.	57283-72-4
Molecular Formula	C19H18ClP
Molecular Weight	312.77 g/mol
Synonyms	Methyltriphenylphosphonium Chloride; (Methyl)triphenylphosphonium Chloride; Phosphonium, methyltriphenyl-, chloride; Triphenylmethylphosphonium Chloride; MTPP-Cl; Methyltriphenylphosphonium Chloride; Methyltriphenylphosphonium chloride; NSC 406913
EINECS	Contact for details

Quality Control

Our Methyl(Triphenyl)Phosphonium Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay (by titration), identity confirmation (IR), and impurity profiling, to ensure it meets the high-purity standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment and is available upon request.

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 must be kept under anhydrous conditions. For long-term storage, consider storing under an inert atmosphere such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Melting Point	~ 230 °C (dec.)
Loss on Drying	≤ 1.0 %
Solubility	Soluble in polar organic solvents (e.g., DMF, DMSO)

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