Description

(4-Pentenyl)Triphenylphosphonium Bromide is a versatile organophosphorus salt widely used as a key reagent in advanced organic synthesis. Its primary value lies in its role as a Wittig reagent, enabling the efficient and stereoselective construction of carbon-carbon double bonds to form alkenes. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and complex molecular architectures.

Application

• Wittig Olefination Reactions: As a stabilized ylide precursor for the synthesis of α,β-unsaturated esters and other functionalized alkenes.
• Pharmaceutical Intermediate Synthesis: For constructing key alkene segments in the development of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Manufacturing: Used in the synthesis of complex molecules for crop protection agents and pesticides.
• Material Science Research: Employed in the creation of novel organic materials, liquid crystals, and polymers with specific olefinic functionalities.
• Fine Chemical Production: A building block for synthesizing flavors, fragrances, and other high-value specialty chemicals.
• Academic & R&D Laboratories: A fundamental reagent for methodological development and exploratory organic chemistry.

Basic Information

Product Name	(4-Pentenyl)Triphenylphosphonium Bromide
CAS No.	56771-29-0
Molecular Formula	C23H24BrP
Molecular Weight	411.31 g/mol
Synonyms	Triphenyl(4-penten-1-yl)phosphonium Bromide; 4-Penten-1-yltriphenylphosphonium Bromide; 4-Pentenyltriphenylphosphonium Bromide; (4-Pentenyl)triphenylphosphonium Bromide; (Pent-4-en-1-yl)(triphenyl)phosphonium Bromide; Phosphonium, (4-penten-1-yl)triphenyl-, bromide (1:1); P-(4-Pentenyl)triphenylphosphonium Bromide
EINECS	Contact for details

Quality Control

Our (4-Pentenyl)Triphenylphosphonium Bromide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity suitable for demanding synthetic applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity confirmation, and impurity profiles. Our quality system is designed to meet the rigorous standards required for research and industrial-scale chemical synthesis.

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 anhydrous conditions to maintain stability and reactivity. Keep the container tightly sealed when not in use.

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	≤ 1.0%
Heavy Metals	< 20 ppm

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