Description

4-Methylbenzene-1-Sulfenic Acid Butyl Ester is an organosulfur compound of significant interest in advanced organic synthesis and materials science. Its unique sulfenic ester functional group makes it a valuable intermediate for constructing complex sulfur-containing molecules. This specialty chemical is primarily sought by research institutions and industrial R&D departments focused on pharmaceuticals, agrochemicals, and polymer additives.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly those requiring sulfoxide or sulfone moieties.
• Agrochemical Synthesis: Used in the development of new pesticides, herbicides, and fungicides where the sulfenic ester group acts as a reactive handle.
• Polymer Modification: Acts as a functional monomer or cross-linking agent to introduce sulfur-based functionalities into polymer chains, enhancing properties like adhesion or thermal stability.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create specialized ligands for catalysis.
• Flavor and Fragrance Industry: Potential intermediate for synthesizing specific sulfur-containing aroma compounds.
• Material Science Research: Investigated for creating advanced materials with specific electronic or surface properties.

Basic Information

Product Name	4-Methylbenzene-1-Sulfenic Acid Butyl Ester
CAS No.	40491-79-0
Molecular Formula	C11H16O2S
Molecular Weight	212.31 g/mol
Synonyms	Butyl p-Toluenesulfenate; Butyl 4-Methylbenzenesulfenate; p-Tolyl Butyl Sulfenate; 4-Methylbenzenesulfenic Acid Butyl Ester; Butyl Tosylsulfenate; 1-Butoxy-4-methylbenzene-1-sulfene; (4-Methylphenyl) Butyl Sulfenate; Butyl (4-methylphenyl)sulfenate
EINECS	Contact for details

Quality Control

Our production of 4-Methylbenzene-1-Sulfenic Acid Butyl Ester adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

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.