Description

Benzenesulfenic Acid Methyl Ester is a specialized organosulfur compound that serves as a valuable synthetic intermediate and reagent. Its unique sulfenic ester functionality makes it a critical building block for introducing sulfur-containing moieties into target molecules. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of sulfoxide and sulfone-containing drug candidates.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides that incorporate sulfur-based functional groups.
• Organic Synthesis Reagent: Acts as an electrophilic sulfur transfer agent in various C-S bond-forming reactions.
• Material Science Research: Investigated as a precursor for functional polymers and advanced materials with specific surface properties.
• Chemical Biology Probes: Utilized in the design of activity-based probes to study enzyme mechanisms involving sulfur chemistry.
• Catalyst Ligand Development: Serves as a starting material for synthesizing novel sulfur-donor ligands for transition metal catalysis.

Basic Information

Product Name	Benzenesulfenic Acid Methyl Ester
CAS No.	72347-63-8
Molecular Formula	C7H8O2S
Molecular Weight	156.20 g/mol
Synonyms	Methyl Benzenesulfenate; Methyl Phenylsulfenate; Benzenesulfenic Acid, Methyl Ester; Phenylsulfenic Acid Methyl Ester; Methyl Sulfenate, Phenyl-; Methyl Benzenesulfinate (common misnomer); S-Methoxybenzenesulfenic Acid; (Methylsulfanyl)benzene Oxide
EINECS	Contact for details

Quality Control

Our Benzenesulfenic Acid Methyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity assessment and structural confirmation, to ensure it meets the high standards required for research and process chemistry. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profile.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and degradation. This material is easily oxidized. Keep the container tightly sealed in a cool, dry, and well-ventilated place away from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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