Description

Sulfurous Acid Bis(2-Phenylethyl) Ester is a specialized organosulfur compound with the CAS number 24281-43-4, valued for its role as a versatile intermediate in fine chemical synthesis. This ester is particularly significant for introducing the phenethyl moiety into target molecules, enabling the development of compounds with specific aromatic and structural properties. It serves as a critical building block for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced material sectors seeking to innovate within their product pipelines.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring phenethyl-based structures.
• Agrochemical Synthesis: Serves as a key precursor in the production of certain herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Employed in research for creating novel ligands in coordination chemistry and organometallic catalysts.
• Polymer Modification: Acts as a monomer or modifier in the synthesis of specialty polymers to impart specific aromatic characteristics.
• Flavor and Fragrance Industry: Utilized as an intermediate for synthesizing complex aroma chemicals and flavor compounds.
• Organic Synthesis Research: A valuable reagent for academic and industrial R&D in constructing complex organic molecules and exploring new reaction pathways.

Basic Information

Product Name	Sulfurous Acid Bis(2-Phenylethyl) Ester
CAS No.	24281-43-4
Molecular Formula	C16H18O3S
Molecular Weight	290.38 g/mol
Synonyms	Bis(2-phenylethyl) sulfite; Di(2-phenylethyl) sulfite; 2-Phenylethyl sulfite; Sulfurous Acid Diphenethyl Ester; Phenethyl sulfite; NSC 163080; Bis(phenethyl) sulfite; Sulfite de bis(2-phényléthyle) [French]
EINECS	Contact for details

Quality Control

Every batch of Sulfurous Acid Bis(2-Phenylethyl) Ester is produced and tested under a strict quality management system to ensure consistency and reliability. Our products undergo rigorous analytical testing, including chromatography and spectroscopy, to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. Handle and store under an inert atmosphere if prolonged storage is required to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Residue on Ignition	≤ 0.1%

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