Description

Phosphan CAS NO 115-78-6 is a specialized organophosphorus compound, specifically a phosphine oxide, known for its utility as a versatile chemical intermediate. Its value lies in its ability to act as a key building block for synthesizing more complex phosphorus-containing molecules, which are critical in advanced material science and specialty chemistry. This product is essential for R&D laboratories and manufacturers in the agrochemical, pharmaceutical, and flame-retardant industries seeking reliable, high-purity intermediates for their processes.

Application

• Agrochemical Synthesis: A crucial precursor in the manufacture of certain organophosphate insecticides and herbicides.
• Pharmaceutical Intermediates: Used in the research and development of novel drug candidates, particularly those containing phosphorus.
• Flame Retardant Production: Serves as a starting material for synthesizing phosphorus-based flame retardants used in polymers and textiles.
• Ligand in Catalysis: Employed in the preparation of phosphine oxide ligands for transition metal catalysis in fine chemical synthesis.
• Material Science: Utilized in the development of specialty polymers and advanced materials with tailored properties.
• Chemical Research: Acts as a standard or reagent in analytical and synthetic chemistry research within academic and industrial settings.

Basic Information

Product Name	Phosphan
CAS No.	115-78-6
Molecular Formula	C6H5P(O)(C2H5)2
Molecular Weight	182.18 g/mol
Synonyms	Diethylphenylphosphine Oxide; Phenyldiethylphosphine Oxide; Ethylphenylphosphine Oxide; (Diethylphosphinyl)benzene; Phosphine oxide, diethylphenyl-; NSC 66445; P,P-Diethyl-P-phenylphosphine oxide
EINECS	204-104-6

Quality Control

Our Phosphan (CAS 115-78-6) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by titration and impurity profile analysis by GC or HPLC, to ensure it meets the required specifications for industrial and research use. A Certificate of Analysis (COA) detailing purity, identity, and other critical parameters is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature and tendency to be easily oxidized, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (GC/Titration)	≥ 98.0%
Melting Point	55 - 59 °C
Loss on Drying	≤ 0.5%
Related Substances (GC/HPLC)	≤ 2.0% total

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