Description

Tricyclo[4.2.1.02,5]Non-7-Ene-3-Carbonyl Chloride (9Ci) is a specialized, high-value organic building block characterized by its strained polycyclic structure and highly reactive acid chloride functional group. This compound matters as a critical intermediate for synthesizing complex molecules, enabling the introduction of the unique tricyclo[4.2.1.02,5]nonene scaffold into target structures. It is primarily needed by research chemists and process development scientists in the pharmaceutical and advanced materials sectors for constructing novel active pharmaceutical ingredients (APIs) and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting central nervous system (CNS) or anti-inflammatory applications.
• Advanced Material Synthesis: Used in the preparation of specialty polymers and resins with unique thermal or mechanical properties due to its rigid, strained hydrocarbon framework.
• Agrochemical Research: Employed in the synthesis of experimental herbicides or pesticides where the bicyclic structure can impart specific biological activity.
• Ligand and Catalyst Development: Acts as a precursor for creating novel chiral ligands or organocatalysts used in asymmetric synthesis.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic synthesis, including cycloaddition reactions and ring-opening polymerizations.
• Fine Chemical Production: Utilized in the multi-step synthesis of complex fragrances, flavors, or other high-value specialty chemicals.

Basic Information

Product Name	Tricyclo[4.2.1.02,5]Non-7-Ene-3-Carbonyl Chloride (9Ci)
CAS No.	663618-23-3
Molecular Formula	C10H9ClO
Molecular Weight	180.63 g/mol
Synonyms	Tricyclo[4.2.1.02,5]non-7-ene-3-carbonyl chloride; 3-Carbamoyl-tricyclo[4.2.1.02,5]non-7-ene; Bicyclo[2.2.1]hept-5-ene-2-carbonyl chloride, 1,3,3-trimethyl- (related structure); 7-Norbornenylcarbonyl chloride derivative; Norbornene-based acid chloride; Tricyclononenyl carbonyl chloride; (1R,4S,5R)-Tricyclo[4.2.1.02,5]non-7-ene-3-carbonyl chloride (enantiomer-specific)
EINECS	Contact for details

Quality Control

Our Tricyclo[4.2.1.02,5]Non-7-Ene-3-Carbonyl Chloride is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment. We can support development projects requiring compliance with cGMP or other regulatory frameworks upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. Due to its hygroscopic and moisture-sensitive nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from heat, sparks, open flames, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Area %)
Purity (GC)	≥ 90.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 2.0%; Total impurities ≤ 5.0%

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