Description

Bicyclo[2.2.1]Hept-5-Ene-2-Carboxylic Acid, 5-Methyl- (9Ci) is a specialized, high-purity bicyclic organic acid derivative with a norbornene core structure. This compound is valued as a critical building block and chiral intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of proprietary drug candidates, particularly those requiring rigid, three-dimensional frameworks.
• Agrochemical Synthesis: Used in the research and development of new-generation herbicides, fungicides, and insecticides with enhanced specificity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers with unique thermal and mechanical properties, such as polyimides or epoxy resins.
• Catalyst & Ligand Development: Employed in the design and synthesis of novel organometallic catalysts and chiral ligands for asymmetric synthesis.
• Fine Chemical Production: Utilized as a versatile intermediate for manufacturing other high-value, complex fine chemicals and flavors/fragrances.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic chemistry, including cycloaddition reactions and stereoselective transformations.

Basic Information

Product Name	Bicyclo[2.2.1]Hept-5-Ene-2-Carboxylic Acid, 5-Methyl- (9Ci)
CAS No.	80916-47-8
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	5-Methyl-2-norbornene-2-carboxylic acid; 5-Methylbicyclo[2.2.1]hept-5-ene-2-carboxylic acid; 5-Methyl-5-norbornene-2-carboxylic acid; 2-Carboxy-5-methyl-2,5-norbornadiene; 5-Methyl-2-norbornenecarboxylic Acid; 5-Methyl-2-norbornene-2-carboxylate
EINECS	Contact for details

Quality Control

Our Bicyclo[2.2.1]Hept-5-Ene-2-Carboxylic Acid, 5-Methyl- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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