Description

Ethyldiphenylphosphinate CAS NO 1733-55-7 is an organophosphorus compound widely utilized as a versatile intermediate and ligand in advanced chemical synthesis. Its value lies in its ability to facilitate key transformations, particularly in the production of pharmaceuticals and specialty materials. This product is essential for R&D laboratories and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking reliable, high-purity chemical building blocks.

Application

• Key intermediate in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Precursor for the preparation of organophosphorus ligands used in catalytic processes, including cross-coupling reactions.
• Building block for flame retardants and polymer additives in material science applications.
• Intermediate in the development of agrochemicals, such as herbicides and plant growth regulators.
• Used in research and development for creating novel phosphorus-containing compounds with specialized properties.
• Component in the synthesis of photoinitiators and other functional materials for the electronics industry.

Basic Information

Product Name	Ethyldiphenylphosphinate
CAS No.	1733-55-7
Molecular Formula	C14H15O2P
Molecular Weight	246.24 g/mol
Synonyms	Ethyl diphenylphosphinate; Diphenylphosphinic acid ethyl ester; Ethoxy(diphenyl)phosphine oxide; NSC 404083; Ethyl diphenylphosphinite oxide; O-Ethyl diphenylphosphinate; Phosphinic acid, P,P-diphenyl-, ethyl ester
EINECS	217-071-7

Quality Control

Our Ethyldiphenylphosphinate is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic and spectroscopic methods, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting compliance with our stringent specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.