Description

Benzyldiphenylphosphine Oxide is a versatile organophosphorus compound widely used as a key intermediate and ligand in advanced chemical synthesis. Its primary value lies in its ability to facilitate critical reactions in the production of pharmaceuticals, agrochemicals, and specialty materials. This product is essential for R&D chemists and process engineers in the pharmaceutical, fine chemical, and catalyst development industries seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring phosphine oxide moieties.
• Catalyst Ligand Precursor: Serves as a precursor for generating specialized phosphine ligands used in cross-coupling reactions (e.g., Suzuki, Heck) and hydrogenation catalysis.
• Agrochemical Synthesis: Employed in the manufacturing of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Used in the development of flame retardants, polymer modifiers, and ligands for metal-organic frameworks (MOFs).
• Organic Synthesis Reagent: Functions as a stabilizing agent or reactant in Wittig-type reactions and other organometallic transformations.
• Chemical Research & Development: A valuable standard and reagent for method development and exploratory chemistry in academic and industrial labs.

Basic Information

Product Name	Benzyldiphenylphosphine Oxide
CAS No.	2959-74-2
Molecular Formula	C19H17OP
Molecular Weight	292.31 g/mol
Synonyms	Benzyl(diphenyl)phosphine oxide; (Diphenylphosphinyl)methylbenzene; α-(Diphenylphosphinyl)toluene; Phosphine oxide, benzyldiphenyl-; Benzyldiphenylphosphane oxide; NSC 163082; Benzyl diphenylphosphine oxide; P,P-Diphenyl-P-(phenylmethyl)phosphine oxide
EINECS	220-980-3

Quality Control

Our Benzyldiphenylphosphine Oxide is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	< 10 ppm

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