Description

3-Buten-2-One, 4-(Methylthio)- (9Ci) is a specialized sulfur-containing α,β-unsaturated ketone, serving as a valuable synthon in advanced organic synthesis. Its core value lies in its reactive enone functionality combined with a methylthio group, making it a versatile building block for constructing complex molecular architectures. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications such as heterocyclic synthesis and material science.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfur heterocycles or thioether linkages.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its reactive site for molecular diversification.
• Flavor & Fragrance Chemistry: Acts as a precursor for sulfur-containing flavor compounds, contributing to savory, roasted, or meaty notes in advanced flavor formulations.
• Material Science Research: Employed in the development of specialty polymers, ligands for catalysis, and advanced organic electronic materials due to its conjugated system.
• Chemical Synthesis Reagent: Serves as a Michael acceptor in organic synthesis, enabling the introduction of the 4-(methylthio)but-3-en-2-one moiety into target molecules.

Basic Information

Product Name	3-Buten-2-One, 4-(Methylthio)- (9Ci)
CAS No.	66894-64-2
Molecular Formula	C5H8OS
Molecular Weight	116.18 g/mol
Synonyms	4-(Methylthio)-3-buten-2-one; 4-Methylsulfanylbut-3-en-2-one; 3-Buten-2-one, 4-(methylthio)-; (E)-4-(Methylthio)but-3-en-2-one; 4-Methylmercapto-3-buten-2-one; 4-(Methylmercapto)-3-buten-2-one; 4-Methylthio-3-buten-2-one; 4-(Methylsulfanyl)-3-buten-2-one
EINECS	Contact for details

Quality Control

Our 3-Buten-2-One, 4-(Methylthio)- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

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

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