Description

1-(Methylthio)-2-Butanone is a sulfur-containing ketone, specifically a methylthio derivative of butanone, with the CAS number 13678-58-5. This compound serves as a valuable intermediate and flavor/fragrance ingredient due to its unique organoleptic properties and reactive thioether functionality. It is primarily sought after by manufacturers in the flavor & fragrance, pharmaceutical, and agrochemical industries for synthesizing complex molecules and creating specific sensory profiles.

Application

• Flavor & Fragrance Ingredient: Used as a key component in creating savory, meaty, and roasted flavor profiles for processed foods, seasonings, and savory snacks.
• Fragrance Compound: Employed in perfume compositions to impart sulfurous, tropical, or exotic notes, often used in trace amounts for complex accords.
• Pharmaceutical Intermediate: Acts as a versatile building block in the synthesis of more complex sulfur-containing active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Serves as a precursor in the production of certain pesticides and herbicides where the thioether group is integral to biological activity.
• Organic Synthesis Reagent: Utilized in research and development as a specialty reagent for introducing the methylthio functional group into target molecules.
• Chemical Intermediate: Used in the manufacture of other fine chemicals, dyes, and specialty polymers.

Basic Information

Product Name	1-(Methylthio)-2-Butanone
CAS No.	13678-58-5
Molecular Formula	C5H10OS
Molecular Weight	118.20 g/mol
Synonyms	2-Butanone, 1-(methylthio)-; 1-Methylthio-2-butanone; 3-Oxo-1-methylthiobutane; Methyl 2-oxobutyl sulfide; 2-Oxobutyl methyl sulfide; FEMA 4455; (Methylthio)-2-butanone
EINECS	Contact for details

Quality Control

Our 1-(Methylthio)-2-Butanone is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and composition. Certificates of Analysis (COA) documenting key parameters such as assay, specific gravity, and refractive index are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	1.000 - 1.050
Refractive Index (20°C)	1.470 - 1.490

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