Description

5-Hepten-2-One, 3-Methyl-, (3S,5E)- (9Ci) is a chiral, unsaturated ketone characterized by its specific stereochemistry, making it a valuable building block in advanced organic synthesis. Its defined structure is crucial for applications requiring precise molecular geometry and enantiomeric purity. This compound is primarily sought after by research institutions and fine chemical manufacturers developing pharmaceuticals, agrochemicals, and high-value flavor and fragrance ingredients.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of novel pesticides and herbicides where specific stereochemistry influences biological activity.
• Flavor & Fragrance (F&F) Industry: Acts as a precursor for creating specific, high-value aroma compounds with natural character.
• Organic Synthesis & Catalysis: Employed as a substrate in asymmetric synthesis and catalysis research to develop new synthetic methodologies.
• Material Science: Investigated as a monomer or cross-linking agent for specialized polymers with unique properties.

Basic Information

Product Name	5-Hepten-2-One, 3-Methyl-, (3S,5E)- (9Ci)
CAS No.	519002-37-0
Molecular Formula	C8H14O
Molecular Weight	126.20 g/mol
Synonyms	(3S,5E)-3-Methyl-5-hepten-2-one; (S,E)-3-Methyl-5-hepten-2-one; 3-Methyl-5-hepten-2-one, (3S,5E)-; (3S,5E)-3-Methylhept-5-en-2-one; (S,E)-3-Methylhept-5-en-2-one; 5-Hepten-2-one, 3-methyl-, (3S,5E)-; (3S-trans)-3-Methyl-5-hepten-2-one
EINECS	Contact for details

Quality Control

Every batch of 5-Hepten-2-One, 3-Methyl-, (3S,5E)- (9Ci) is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure identity, purity, and enantiomeric excess meet your specific research or production requirements. A Certificate of Analysis (COA) detailing specifications such as assay (by GC or HPLC), chiral purity, and impurity profile is available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Chiral Purity (Chiral GC/HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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