Description

3-Penten-2-One, 5-(Methylthio)-, (E)- (9Ci) is a specialized sulfur-containing α,β-unsaturated ketone, distinguished by its (E)-configuration and methylthio functional group. This compound serves as a valuable versatile synthetic intermediate and building block in advanced organic synthesis, particularly for introducing sulfur-based moieties into target molecules. It is primarily utilized by research institutions and fine chemical manufacturers engaged in the development of novel agrochemicals, pharmaceuticals, and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, especially those requiring thioether or sulfur-containing heterocyclic structures.
• Agrochemical Synthesis: Used in the research and production of novel pesticides, herbicides, and fungicides where the methylthio group can contribute to biological activity.
• Flavor & Fragrance Chemistry: Serves as a building block for creating complex sulfur-containing aroma compounds, which are often potent and characteristic of certain food flavors.
• Material Science Research: Employed in the development of advanced polymers, ligands for catalysis, and organic electronic materials due to its reactive ketone and alkene functionalities.
• Organic Synthesis Reagent: Acts as a Michael acceptor or a dienophile in cycloaddition reactions, enabling the construction of complex molecular architectures in academic and industrial R&D.

Basic Information

Item	Details
Product Name	3-Penten-2-One, 5-(Methylthio)-, (E)- (9Ci)
CAS No.	113681-61-1
Molecular Formula	C6H10OS
Molecular Weight	130.21 g/mol
Synonyms	(E)-5-(Methylthio)-3-penten-2-one; (E)-5-Methylsulfanylpent-3-en-2-one; trans-5-(Methylthio)-3-penten-2-one; 5-(Methylthio)-3-penten-2-one, (E)-; 3-Penten-2-one, 5-(methylthio)-, (E)-; 113681-61-1; (E)-1-(Methylsulfanyl)-4-oxopent-2-ene
EINECS	Contact for details

Quality Control

Our production of 3-Penten-2-One, 5-(Methylthio)-, (E)- (9Ci) adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support custom synthesis and can tailor specifications to meet specific research or project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Recommended storage temperature is between 2°C and 8°C for long-term stability. Keep away from strong bases and incompatible materials such as strong oxidizing agents. Allow the container to reach ambient temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0% (Area %)
Purity (HPLC)	≥ 94.0%
Isomeric Purity ((E)-isomer)	≥ 98.0% (by GC or NMR)
Water Content (KF)	≤ 0.5%

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