Description

3-Methylthio-2-Butanone CAS NO 53475-15-3 is a sulfur-containing ketone characterized by its distinctive, powerful aroma. This organosulfur compound is a versatile intermediate and flavor/fragrance ingredient valued for its unique organoleptic properties. It is primarily sought after by manufacturers in the flavor and fragrance, pharmaceutical, and fine chemical synthesis industries for creating complex sulfur notes and as a building block for more advanced molecules.

Application

• Flavor and Fragrance Industry: Used as a key aroma chemical to impart savory, meaty, roasted, or tropical fruit notes in savory flavors, reaction flavors, and specialty fragrances.
• Pharmaceutical Intermediates: Serves as a valuable synthon in the synthesis of more complex sulfur-containing active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Fine Chemical Synthesis: Acts as a versatile building block in organic synthesis for the preparation of heterocyclic compounds, thioethers, and other specialty chemicals.
• Food Technology: Employed in the development of process flavors, particularly meat and savory flavorings, where it contributes to authentic cooked character.
• Research and Development: Utilized in academic and industrial R&D settings for studying sulfur chemistry and developing new synthetic methodologies.

Basic Information

Product Name	3-Methylthio-2-Butanone
CAS No.	53475-15-3
Molecular Formula	C5H10OS
Molecular Weight	118.20 g/mol
Synonyms	3-(Methylthio)-2-butanone; 2-Butanone, 3-(methylthio)-; Methyl 1-methyl-2-oxopropyl sulfide; 3-Methylmercapto-2-butanone; 3-Methylsulfanylbutan-2-one; FEMA 3377; 1-Methyl-2-oxopropyl methyl sulfide
EINECS	258-580-2

Quality Control

Our 3-Methylthio-2-Butanone is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) that include data from GC, GC-MS, and NMR analyses. Our quality commitment aligns with standards relevant to flavor and fragrance ingredients, ensuring reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for extended stability, although short-term storage at controlled room temperature (15-25°C) is acceptable.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.470 - 1.480
Specific Gravity (20/20°C)	1.010 - 1.030
Water Content (KF)	≤ 0.5%

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