Description

5 - (4 - Methoxy -,3,6 - Three Methyl Phenyl) 2-3 - Methyl - 2, 4 - Pentadiene - 1 - Triphenylphosphine Bromide CAS NO 84244-59-7 is a specialized organophosphorus compound, specifically a Wittig reagent salt, valued for its role as a key synthetic intermediate. Its primary commercial value lies in enabling precise carbon-carbon double bond formation, a critical step in the synthesis of complex organic molecules. This high-purity chemical is essential for research and development laboratories and production facilities in the pharmaceutical, agrochemical, and advanced materials sectors.

Application

• Pharmaceutical Intermediate: Critical for the synthesis of vitamin A analogs, retinoids, and other polyene-containing active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in constructing key frameworks for advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a building block for fragrances, flavors, and dyes requiring specific olefin geometries.
• Material Science Research: Employed in the development of conjugated polymers and organic semiconductors for electronic applications.
• Academic & Process Chemistry: A reliable reagent for Wittig olefination reactions in method development and scale-up studies.
• Custom Synthesis: Provides a versatile route for contract research organizations (CROs) and CDMOs to produce custom-designed olefins.

Basic Information

Product Name	5 - (4 - Methoxy -,3,6 - Three Methyl Phenyl) 2-3 - Methyl - 2, 4 - Pentadiene - 1 - Triphenylphosphine Bromide
CAS No.	84244-59-7
Molecular Formula	C34H36BrOP
Molecular Weight	571.53 g/mol
Synonyms	(5-(4-Methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadien-1-yl)triphenylphosphonium bromide; Wittig Salt 84244-59-7; Phosphonium salt, (5-(4-methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadienyl)triphenyl-, bromide; Retinylidene triphenylphosphonium bromide derivative; Trimethylmethoxyphenylpentadienyl triphenylphosphonium bromide
EINECS	Contact for details

Quality Control

Our production of this Wittig reagent adheres to strict quality protocols to ensure batch-to-batch consistency and high reactivity. Every lot is characterized using advanced analytical techniques including NMR and HPLC to confirm identity and purity. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided and available upon request to support your quality management systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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