Description

5-Hexen-2-One, 3-Hydroxy-3-Methyl-, (+)- (9Ci) is a chiral, unsaturated hydroxy ketone, a versatile building block in organic synthesis. Its unique structure, featuring both a ketone and a hydroxyl group on a carbon chain with a terminal alkene, makes it a valuable intermediate for constructing complex molecular architectures. This compound is particularly sought after by research chemists and process development scientists in the pharmaceutical and fine chemical industries for the synthesis of active pharmaceutical ingredients (APIs), natural product analogs, and specialty materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the asymmetric synthesis of complex drug molecules and bioactive compounds.
• Fine Chemical Synthesis: Used in the preparation of fragrances, flavors, and advanced organic materials requiring specific stereochemistry.
• Academic & Industrial Research: Serves as a model substrate in methodological development for novel organic transformations, such as asymmetric aldol reactions or olefin metathesis.
• Agrochemical Development: Potential intermediate in the synthesis of chiral active ingredients for crop protection agents.
• Polymer Chemistry: Can be utilized as a monomer or co-monomer precursor for specialty polymers with tailored properties.

Basic Information

Product Name	5-Hexen-2-One, 3-Hydroxy-3-Methyl-, (+)- (9Ci)
CAS No.	103383-83-1
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	(+)-3-Hydroxy-3-methyl-5-hexen-2-one; (3R)-3-Hydroxy-3-methyl-5-hexen-2-one; (R)-3-Hydroxy-3-methyl-5-hexen-2-one; 5-Hexen-2-one, 3-hydroxy-3-methyl-, (R)-; 3-Methyl-3-hydroxy-5-hexen-2-one; (R)-3-Methyl-3-hydroxy-5-hexen-2-one
EINECS	Contact for details

Quality Control

We supply 5-Hexen-2-One, 3-Hydroxy-3-Methyl-, (+)- (9Ci) in high-purity grades suitable for demanding research and development applications. Our products undergo rigorous quality testing, including chiral purity analysis, to ensure batch-to-batch consistency and reliability. A comprehensive Certificate of Analysis (COA) detailing purity, enantiomeric excess, and identity is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. For long-term storage, it is recommended to keep the material under an inert atmosphere at temperatures between 2°C and 8°C to maintain stability and purity.

Specification

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

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