Description

Tris(Trimethylsilyl)Phosphine is a highly reactive organosilicon reagent featuring a phosphorus atom bonded to three trimethylsilyl groups. This compound matters as a versatile and powerful silylating agent and a source of nucleophilic phosphide anions in advanced organic synthesis and materials science. It is primarily needed by researchers and manufacturers in the pharmaceutical, agrochemical, and semiconductor industries for constructing complex molecular architectures and developing novel materials.

Application

• As a key reagent in the synthesis of phosphorus-containing heterocycles and organophosphorus compounds.
• As a silylating agent for the protection of sensitive functional groups in multi-step synthetic sequences.
• As a precursor for generating phosphide anions used in nucleophilic substitution and metal-phosphorus bond formation.
• In the preparation of phosphorus-doped silicon materials and thin films for semiconductor applications.
• As a ligand precursor in the development of novel transition metal catalysts for polymerization and cross-coupling reactions.
• In research and development of flame retardants and other specialty chemical additives.

Basic Information

Product Name	Tris(Trimethylsilyl)Phosphine
CAS No.	15573-38-3
Molecular Formula	C9H27PSi3
Molecular Weight	250.55 g/mol
Synonyms	Tris(trimethylsilyl)phosphine; Phosphinotris(trimethylsilane); Tris(trimethylsilyl)phosphane; (Trimethylsilyl)phosphine, tris-; Tris(trimethylsilyl)phosphorus; TMS-phosphine (Tris); P(SiMe3)3; TTSP
EINECS	Contact for details

Quality Control

Our Tris(Trimethylsilyl)Phosphine is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including NMR and GC analysis, to verify identity and assay. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at 2-8°C in a cool, dry, well-ventilated area. Due to its highly volatile and easily oxidized nature, the container must be kept sealed and handled in a controlled environment to prevent degradation and ensure safety.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (NMR)	Conforms to structure
Assay (GC)	≥ 95.0%
Purity (by GC)	≥ 97.0%

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