Description

Propargyltriphenylphosphonium Bromide is a versatile organophosphorus salt widely used as a key reagent in organic synthesis. Its primary value lies in its role as a ylide precursor for the Wittig reaction, enabling the efficient construction of carbon-carbon double bonds to form alkynes and other complex molecules. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity building blocks for developing active ingredients and novel compounds.

Application

• Wittig Reaction Reagent: A crucial precursor for generating phosphorus ylides used to synthesize alkynes and substituted alkenes.
• Pharmaceutical Intermediate: Employed in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in creating advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: Serves as a building block for novel polymers, liquid crystals, and organic electronic materials.
• Academic & R&D Laboratories: A fundamental reagent for methodological development and exploratory organic chemistry.
• Fine Chemical Production: Applied in the custom synthesis of specialty chemicals and flavor/fragrance compounds.

Basic Information

Product Name	Propargyltriphenylphosphonium Bromide
CAS No.	2091-46-5
Molecular Formula	C21H18BrP
Molecular Weight	381.25 g/mol
Synonyms	Propargyltriphenylphosphonium Bromide; Triphenyl(2-propynyl)phosphonium Bromide; 2-Propyn-1-yltriphenylphosphonium Bromide; (2-Propynyl)triphenylphosphonium Bromide; Propargyl Triphenylphosphonium Bromide; Phosphonium, (2-propynyl)triphenyl-, bromide; Phosphonium, triphenyl(2-propynyl)-, bromide
EINECS	218-235-4

Quality Control

Our Propargyltriphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your research and production requirements.

Storage

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

Specification

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

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