Description

[3-Methyl-5-(2,6,6-Trimethyl-1-Cyclohexen-1-Yl)-2,4-Pentadienyl]Triphenylphosphonium Sulphate is a high-purity, organophosphorus salt primarily used as a critical synthetic intermediate in complex organic transformations. This compound matters for its role as a key Wittig reagent, enabling the precise construction of conjugated polyene systems found in valuable target molecules. Industrial and academic researchers in the pharmaceutical, agrochemical, and fine chemical sectors require this material for the synthesis of complex natural products, vitamins, and specialty chemicals.

Application

• Wittig Reaction Reagent: A key precursor for the synthesis of vitamin A, β-carotene, and related retinoids via olefination reactions.
• Pharmaceutical Intermediate: Used in the multi-step synthesis of active pharmaceutical ingredients (APIs) requiring specific conjugated diene or triene structures.
• Agrochemical Synthesis: Employed in the production of advanced crop protection agents and plant growth regulators.
• Fine Chemical Manufacturing: Serves as a building block for fragrances, dyes, and other high-value specialty organic compounds.
• Academic & Process R&D: Utilized in research laboratories for method development and the exploration of new synthetic pathways.
• Material Science Precursor: Potential use in the synthesis of organic semiconductors and advanced polymeric materials with specific optical properties.

Basic Information

Product Name	[3-Methyl-5-(2,6,6-Trimethyl-1-Cyclohexen-1-Yl)-2,4-Pentadienyl]Triphenylphosphonium Sulphate
CAS No.	751-83-7
Molecular Formula	C₃₃H₄₁O₄PS
Molecular Weight	564.73 g/mol
Synonyms	Triphenyl(3-methyl-5-[(1E,3E)-2,6,6-trimethylcyclohex-1-en-1-yl]penta-1,3-dien-1-yl)phosphonium sulfate; (3-Methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl)triphenylphosphonium sulfate; C20-Wittig Salt (sulfate form); Retinylidene triphenylphosphonium sulfate; Vitamin A intermediate phosphonium salt; Phosphonium, [3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl]triphenyl-, sulfate (1:1)
EINECS	Contact for details

Quality Control

Our [3-Methyl-5-(2,6,6-Trimethyl-1-Cyclohexen-1-Yl)-2,4-Pentadienyl]Triphenylphosphonium Sulphate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high chemical purity and consistent performance as a synthetic reagent. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere such as nitrogen or argon to prevent degradation. Separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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