Description

3,5-Dihydroxybenzyltriphenylphosphonium Bromide is a specialized organophosphorus salt with significant utility as a key reagent in advanced organic synthesis. Its primary value lies in its role as a stabilized ylide precursor, enabling the formation of carbon-carbon double bonds via the Wittig reaction and related olefination processes. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to construct complex molecular architectures with precise stereochemical control.

Application

• Wittig Reaction Reagent: A crucial precursor for generating stabilized ylides used in the synthesis of α,β-unsaturated carbonyl compounds and other olefins.
• Pharmaceutical Intermediate Synthesis: Employed in the construction of key scaffolds for active pharmaceutical ingredients (APIs), including those with styrene or chalcone motifs.
• Agrochemical Product Development: Used in the research and production of novel herbicides, fungicides, and plant growth regulators requiring specific alkene functionalities.
• Ligand and Catalyst Preparation: Serves as a starting material for synthesizing phosphine-based ligands used in transition metal catalysis.
• Material Science Research: Applied in the synthesis of organic semiconductors, liquid crystals, and polymers where controlled olefination is critical.
• Fine Chemical and Flavor/Fragrance Synthesis: Facilitates the production of specific unsaturated compounds used in high-value specialty chemicals.

Basic Information

Product Name	3,5-Dihydroxybenzyltriphenylphosphonium Bromide
CAS No.	29680-77-1
Molecular Formula	C25H22BrO2P
Molecular Weight	465.32 g/mol
Synonyms	Triphenyl(3,5-dihydroxybenzyl)phosphonium bromide; (3,5-Dihydroxybenzyl)triphenylphosphonium bromide; Phosphonium, (3,5-dihydroxybenzyl)triphenyl-, bromide; Benzyltriphenylphosphonium bromide, 3,5-dihydroxy-; 3,5-Dihydroxybenzyl triphenylphosphonium bromide
EINECS	Contact for details

Quality Control

Our 3,5-Dihydroxybenzyltriphenylphosphonium Bromide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with key parameters including assay (HPLC), residual solvent content, and identification (IR, NMR). Our quality commitment ensures the material meets the stringent requirements for research and process development applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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