Description

5-Hepten-2-One, 5-Ethyl-, (E)- (9Ci) is a specialized unsaturated ketone with a defined stereochemistry, identified by CAS number 175655-42-2. This compound is valued as a versatile chiral building block and intermediate in advanced organic synthesis. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring specific stereocenters.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its reactive alkene and ketone functionalities.
• Flavor & Fragrance Ingredient: Acts as a precursor for musk-like or green, fruity odorants due to its structural similarity to other ketone-based aroma chemicals.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of specialty polymers with unique properties.
• Organic Synthesis Building Block: Employed in asymmetric synthesis, Michael additions, and cyclization reactions to create complex, high-value organic molecules.

Basic Information

Product Name	5-Hepten-2-One, 5-Ethyl-, (E)- (9Ci)
CAS No.	175655-42-2
Molecular Formula	C9H16O
Molecular Weight	140.22 g/mol
Synonyms	(E)-5-Ethyl-5-hepten-2-one; (E)-5-Ethylhept-5-en-2-one; trans-5-Ethyl-5-hepten-2-one; 5-Hepten-2-one, 5-ethyl-, (E)-; 5-Ethyl-5-hepten-2-one, (E)-; 175655-42-2; (E)-5-Ethyl-5-hepten-2-on
EINECS	Contact for details

Quality Control

Every batch of 5-Hepten-2-One, 5-Ethyl-, (E)- (9Ci) is produced and tested under strict quality management protocols. We ensure identity, purity, and consistency through comprehensive analytical methods including GC, HPLC, and NMR. A Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to guarantee it meets your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (Area %)
Isomeric Purity ((E)-isomer)	≥ 98.0% (by GC or HPLC)
Water Content (KF)	≤ 0.5%

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