Description

Ethyl Methyl Disulfide CAS NO 20333-39-5 is a specialized organosulfur compound characterized by its distinct disulfide (-S-S-) functional group. This chemical is valued for its role as a versatile intermediate and a source of sulfur in various synthetic and industrial processes. It is primarily sought by manufacturers and researchers in the agrochemical, pharmaceutical, and flavor & fragrance industries for applications requiring controlled sulfur incorporation or specific organoleptic properties.

Application

• Agrochemical Intermediate: A key building block in the synthesis of novel pesticides, fungicides, and herbicides, where the disulfide moiety contributes to biological activity.
• Pharmaceutical Synthesis: Used as a reagent or intermediate in the production of active pharmaceutical ingredients (APIs), particularly in compounds where disulfide linkages are critical.
• Flavor and Fragrance Industry: Serves as a precursor for sulfur-containing flavor compounds, imparting savory, roasted, or alliaceous notes to food products and fragrances.
• Chemical Research & Development: Employed as a model compound or reagent in organic synthesis, catalysis studies, and materials science research.
• Rubber and Polymer Additives: Can act as a vulcanization agent or cross-linking precursor in the modification of elastomers and specialty polymers.
• Lubricant and Fuel Additives: Investigated for use as an extreme pressure additive or anti-wear agent in formulations for industrial lubricants.

Basic Information

Product Name	Ethyl Methyl Disulfide
CAS No.	20333-39-5
Molecular Formula	C3H8S2
Molecular Weight	108.22 g/mol
Synonyms	Methyl Ethyl Disulfide; (Methyldisulfanyl)ethane; 1-(Methyldisulfanyl)ethane; Ethyl Methyl Disulphide; Methylethyl Disulfide; Disulfide, methyl ethyl; 2-Thiapentane
EINECS	243-760-9

Quality Control

Our Ethyl Methyl Disulfide is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) and spectroscopic methods, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition. Due to the typical properties of organosulfur compounds, prolonged exposure to air should be minimized.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.510 - 1.520
Density (20°C)	1.00 - 1.05 g/mL
Water Content (KF)	≤ 0.5%

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