Description

Methyl Benzenesulfinate CAS NO 670-98-4 is an organosulfur compound that serves as a versatile building block and reagent in advanced chemical synthesis. Its primary value lies in its role as a sulfinylating agent, enabling the efficient introduction of the methylsulfinyl group into target molecules. This product is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries who require high-purity intermediates for constructing complex sulfur-containing compounds.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of sulfoxide-containing drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and insecticides that incorporate sulfinyl moieties for enhanced activity.
• Asymmetric Synthesis: Employed as a chiral auxiliary or precursor in stereoselective reactions to create enantiomerically pure compounds.
• Polymer Chemistry: Acts as a modifier or chain-transfer agent in the development of specialty polymers with tailored properties.
• Organic Synthesis Reagent: Utilized in various name reactions, such as Pummerer-type rearrangements and nucleophilic substitution reactions, to form C-S bonds.
• Material Science Research: Investigated for the surface modification of materials and the creation of novel organic electronic components.

Basic Information

Product Name	Methyl Benzenesulfinate
CAS No.	670-98-4
Molecular Formula	C7H8O2S
Molecular Weight	156.20 g/mol
Synonyms	Methyl Benzenesulfinate; Methyl Phenylsulfinate; Benzenesulfinic Acid Methyl Ester; Phenylsulfinic Acid Methyl Ester; Methyl Sulfinylbenzene; Methyl Benzenesulphinate; Methyl Phenylsulphinate; (Methylsulfinyl)benzene
EINECS	211-580-1

Quality Control

Our Methyl Benzenesulfinate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is subjected to comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to verify identity and quantify purity. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We can support development and commercial projects requiring compliance with cGMP, ICH Q7, and other relevant regulatory guidelines.

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). This compound is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen or argon) to preserve stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 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.