Description

Propaphos Sulfone is a key organophosphorus chemical intermediate with the CAS registry number 57511-63-4. This compound is valued for its role in the synthesis of advanced agrochemicals and other specialty chemicals, where consistent purity and reliable supply are critical. It is primarily utilized by manufacturers in the agrochemical, pharmaceutical, and fine chemical industries seeking high-quality building blocks for complex synthesis.

Application

• Agrochemical Intermediate: A crucial precursor in the synthesis of modern insecticides and acaricides.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) requiring specific organophosphorus motifs.
• Fine Chemical Production: Used in research and development for creating novel specialty chemicals and ligands.
• Chemical Research: Employed in academic and industrial laboratories for studying organophosphorus chemistry and reaction mechanisms.

Basic Information

Product Name	Propaphos Sulfone
CAS No.	57511-63-4
Molecular Formula	C13H21O4PS
Molecular Weight	304.34 g/mol
Synonyms	Propaphos sulfone; O-(2,4-Dichlorophenyl) O-ethyl S-propyl phosphorothioate sulfone; S-Propyl O-ethyl O-(2,4-dichlorophenyl) phosphorothioate sulfone; Phosphorothioic acid, S-propyl O-ethyl O-(2,4-dichlorophenyl) ester, sulfone; ENT 27,396 sulfone; Propetamphos sulfone (related compound); Bay NTN 8629 sulfone
EINECS	Contact for details

Quality Control

Our Propaphos Sulfone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identity confirmation by IR and purity determination by HPLC, to ensure it meets exacting standards. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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