Description

Triethylphosphine Oxide is a versatile organophosphorus compound widely utilized as a key intermediate and ligand in advanced chemical synthesis. Its significance lies in its ability to act as a polar aprotic solvent and a stabilizing agent in organometallic chemistry and catalysis. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular interactions are critical.

Application

• As a ligand or catalyst component in transition metal-catalyzed cross-coupling reactions (e.g., Heck, Suzuki reactions).
• As a polar aprotic solvent and reaction medium for specialized organic synthesis.
• As a key intermediate in the synthesis of more complex phosphine oxide derivatives and organophosphorus compounds.
• In pharmaceutical research for the development of new drug candidates and active pharmaceutical ingredients (APIs).
• In agrochemical formulation as a precursor for herbicides, insecticides, or plant growth regulators.
• In material science for the development of flame retardants, stabilizers, or specialty polymers.
• For extraction and separation processes in hydrometallurgy or nuclear fuel reprocessing.

Basic Information

Product Name	Triethylphosphine Oxide
CAS No.	597-50-2
Molecular Formula	C6H15OP
Molecular Weight	134.16 g/mol
Synonyms	Triethylphosphine Oxide; Triethylphosphine 1-Oxide; Ethylphosphine Oxide, tri-; Triethyloxophosphorane; P,P,P-Triethylphosphine oxide; Phosphine oxide, triethyl-; TEPO
EINECS	209-911-1

Quality Control

Our Triethylphosphine Oxide is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 10 ppm

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