Description

(-)-2,3-Cyclononadien-1-One is a chiral, strained cyclic allene derivative characterized by its unique nine-membered ring structure. This compound serves as a sophisticated chiral building block and ligand precursor in advanced synthetic organic chemistry, enabling the construction of complex molecular architectures. It is primarily utilized by research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries for asymmetric synthesis and catalyst development.

Application

• Asymmetric Synthesis: Acts as a chiral synthon for the construction of complex natural products and bioactive molecules.
• Ligand & Catalyst Development: Serves as a precursor for novel chiral ligands used in transition metal catalysis.
• Pharmaceutical Intermediates: Used in the research and development of new active pharmaceutical ingredients (APIs) requiring specific stereochemistry.
• Agrochemical Research: Employed in the synthesis of novel chiral pesticides and herbicides.
• Material Science: Investigated as a monomer or building block for advanced polymeric materials with unique optical properties.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry and stereochemistry.

Basic Information

Product Name	(-)-2,3-Cyclononadien-1-One
CAS No.	62356-42-7
Molecular Formula	C9H12O
Molecular Weight	136.19 g/mol
Synonyms	(-)-2,3-Cyclononadienone; (1S)-2,3-Cyclononadien-1-one; (S)-(-)-2,3-Cyclononadien-1-one; 1-Cyclononene-3,4-dione (related); Chiral Cyclononadienone; (S)-Cyclononadienone
EINECS	Contact for details

Quality Control

Our (-)-2,3-Cyclononadien-1-One is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity determination by HPLC, to ensure high chemical and enantiomeric purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting identity, purity, and relevant physical data.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C or as specified on the label or COA. This product is easily oxidized and light-sensitive. Allow the container to reach ambient temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (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.