Description

4-Phthalimidobutyl Triphenylphosphonium Bromide is a specialized organophosphonium salt that serves as a versatile reagent in advanced organic synthesis. Its primary value lies in its utility as a key intermediate for the preparation of complex molecules, particularly through Wittig and related ylide chemistry. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity building blocks for constructing novel chemical entities.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring specific alkene geometries introduced via Wittig olefination.
• Agrochemical Synthesis: Used in the research and production of novel pesticides and herbicides, where its reactivity enables the creation of unique carbon chains.
• Material Science Research: Employed in the development of specialty polymers, liquid crystals, and organic electronic materials that benefit from tailored molecular structures.
• Academic & Industrial R&D: A valuable reagent for method development and exploratory synthesis in organic chemistry laboratories.
• Peptide Mimetics & Bioconjugation: Facilitates the synthesis of peptide analogs and bioconjugates by providing a functional handle for chain elongation or modification.
• Catalyst Ligand Precursor: Can be utilized to generate phosphine ligands or other organophosphorus compounds for catalytic applications.

Basic Information

Product Name	4-Phthalimidobutyl Triphenylphosphonium Bromide
CAS No.	65273-47-4
Molecular Formula	C31H29BrN2O2P
Molecular Weight	581.45 g/mol
Synonyms	N-(4-Bromobutyl)phthalimide Triphenylphosphonium Bromide; 4-Phthalimido-1-butyltriphenylphosphonium Bromide; 1-Phthalimido-4-(triphenylphosphonio)butane Bromide; PPh3Br-(CH2)4-Phth; Triphenyl(4-phthalimidobutyl)phosphonium Bromide; 4-(Triphenylphosphonio)butyl Phthalimide Bromide
EINECS	Contact for details

Quality Control

Every batch of 4-Phthalimidobutyl Triphenylphosphonium Bromide is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each 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). Due to its hygroscopic nature, the container must be kept sealed to minimize exposure to atmospheric moisture. For long-term storage, consider using a desiccant.

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%
Heavy Metals	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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