Description

Tris[4-(Methylthio)Phenyl]Phosphine Sulfide is a specialized organophosphorus compound featuring a unique combination of phosphine sulfide and methylthioaryl groups. This molecular structure makes it a valuable intermediate and ligand in advanced chemical synthesis, particularly where controlled reactivity and specific electronic properties are required. It is primarily sought by R&D chemists and process engineers in the fine chemical, pharmaceutical, and material science industries for developing novel catalysts and functional molecules.

Application

• As a key ligand or precursor in the development of transition metal catalysts for cross-coupling reactions.
• As a specialized intermediate in the synthesis of novel pharmaceuticals and agrochemicals requiring sulfur-containing motifs.
• In material science research for the development of organic electronic materials, such as OLEDs or conductive polymers.
• As a chemical modifier or additive in polymer systems to impart specific thermal or stability properties.
• For academic and industrial R&D exploring new organophosphorus chemistry and reaction pathways.

Basic Information

Product Name	Tris[4-(Methylthio)Phenyl]Phosphine Sulfide
CAS No.	74038-25-8
Molecular Formula	C21H21P1S4
Molecular Weight	456.61 g/mol
Synonyms	Tris(p-(methylthio)phenyl)phosphine sulfide; Tris(4-methylthiophenyl)phosphine sulfide; Phosphine sulfide, tris[4-(methylthio)phenyl]-; Tris(4-methylsulfanylphenyl)phosphine sulfide; TPPS; 4,4',4''-Trimercaptotriphenylphosphine tris(methyl sulfide) (related); Tris(4-(methylmercapto)phenyl)phosphine sulfide
EINECS	Contact for details

Quality Control

Our production of Tris[4-(Methylthio)Phenyl]Phosphine Sulfide adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is characterized using advanced analytical techniques, including HPLC, NMR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is light-sensitive and easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon to preserve stability.

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	≤ 0.5%
Residue on Ignition	≤ 0.1%

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