Description

trans-3-Penten-2-One is a highly volatile, light-sensitive organic compound belonging to the class of α,β-unsaturated ketones. This chemical serves as a versatile and reactive intermediate, valued for its conjugated carbonyl system which makes it a key building block in organic synthesis. It is primarily used by manufacturers in the fragrance, flavor, and pharmaceutical industries for the production of fine chemicals and active ingredients.

Application

• Fragrance and Flavor Synthesis: A key intermediate for creating specific fruity, green, or woody aroma molecules.
• Pharmaceutical Intermediates: Used in the synthesis of complex molecules and active pharmaceutical ingredients (APIs) due to its reactive α,β-unsaturated ketone moiety.
• Agrochemical Production: Serves as a precursor in the manufacture of certain pesticides and herbicides.
• Organic Synthesis & Research: A valuable reagent for Diels-Alder reactions, Michael additions, and other cyclization processes in academic and industrial R&D.
• Polymer Chemistry: Can be utilized as a monomer or cross-linking agent in specialty polymer formulations.

Basic Information

Product Name	trans-3-Penten-2-One
CAS No.	3102-33-8
Molecular Formula	C5H8O
Molecular Weight	84.12 g/mol
Synonyms	(E)-3-Penten-2-one; (E)-Pent-3-en-2-one; 3-Penten-2-one, (E)-; Methyl propenyl ketone; trans-Methyl propenyl ketone; 1-Methyl-1-buten-3-one; 2-Penten-4-one; 3-Penten-2-one
EINECS	221-459-5

Quality Control

Our trans-3-Penten-2-One is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including GC and NMR analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

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 high volatility, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.855 - 0.865
Refractive Index (20°C)	1.438 - 1.442

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