Description

Tris(Methylthio)Phosphine CAS NO 816-80-8 is a specialized organophosphorus compound featuring three methylthio groups bonded to a central phosphorus atom. This unique structure makes it a valuable intermediate and ligand in advanced chemical synthesis, particularly for creating complex phosphorus-containing molecules. It is essential for researchers and manufacturers in the agrochemical, pharmaceutical, and materials science sectors who require high-purity building blocks for developing new active ingredients and functional materials.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of novel insecticides, herbicides, and fungicides that leverage phosphorus chemistry for enhanced efficacy.
• Pharmaceutical Research: Used as a building block and ligand in the development of new drug candidates, particularly in medicinal chemistry programs targeting phosphorus-based therapeutics.
• Catalyst & Ligand Synthesis: Serves as a versatile starting material for creating specialized phosphine ligands used in homogeneous catalysis for fine chemical production.
• Polymer & Material Science: Employed in the synthesis of flame retardants, stabilizers, and other functional additives for advanced polymeric materials.
• Chemical Research & Development: A critical reagent for academic and industrial R&D focused on exploring new organophosphorus chemistry and reaction pathways.

Basic Information

Product Name	Tris(Methylthio)Phosphine
CAS No.	816-80-8
Molecular Formula	C3H9PS3
Molecular Weight	172.26 g/mol
Synonyms	Trimethyl Trithiophosphite; Phosphorous Tris(methyl mercaptide); Tris(methylmercapto)phosphine; Tris(methylthio)phosphane; Methyl Phosphorotrithioite; (Methylthio)phosphine, tris-; P(SCH3)3
EINECS	212-440-9

Quality Control

Our Tris(Methylthio)Phosphine is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity and composition. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation, the container should be kept sealed and only opened in a controlled environment. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Purity (HPLC)	≥ 96.0%
Water Content (KF)	≤ 0.5%

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