Description

Pentaethoxyphosphorane CAS NO 7735-87-7 is a high-purity organophosphorus compound, specifically a penta-substituted phosphorane, widely used as a versatile reagent in advanced chemical synthesis. Its primary value lies in its role as a powerful phosphorylating and ethoxylating agent, enabling the controlled introduction of phosphorus and ethoxy groups into target molecules. This product is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate Synthesis: A key reagent for the phosphorylation of nucleosides, nucleotides, and other bioactive molecules in the development of antiviral and anticancer drugs.
• Agrochemical Production: Used in the synthesis of organophosphate-based pesticides, herbicides, and plant growth regulators.
• Ligand and Catalyst Preparation: Serves as a precursor for generating specialized phosphine ligands and metal complexes used in homogeneous catalysis.
• Flame Retardant Synergist: Employed in the manufacture of advanced flame-retardant additives for polymers and textiles.
• Material Science Research: Utilized in the surface modification of inorganic materials and the synthesis of novel phosphorus-containing polymers and dendrimers.
• Chemical Vapor Deposition (CVD): Acts as a phosphorus source in the CVD process for depositing thin films in semiconductor and optical applications.

Basic Information

Product Name	Pentaethoxyphosphorane
CAS No.	7735-87-7
Molecular Formula	C10H25O5P
Molecular Weight	256.28 g/mol
Synonyms	Phosphorane, pentaethoxy-; Pentaethyl Phosphite; Pentaethyl Orthophosphate; Ethyl Phosphite ((C2H5O)5P); Pentaethoxy Phosphorus; Tetraethoxyphosphonium Ethoxide; Phosphorus(V) Ethoxide
EINECS	231-791-2

Quality Control

Our Pentaethoxyphosphorane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high chemical purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing assay, identity, and impurity profiles to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.5%
Density (at 20°C)	1.02 - 1.06 g/mL
Refractive Index (n20D)	1.410 - 1.420

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