Description

5-Norbornene-2-Carboxylic Acid, Butyl Ester is a specialized norbornene derivative that serves as a versatile building block in advanced organic synthesis. Its unique bicyclic structure and reactive ester functionality make it a valuable monomer for creating polymers with tailored properties. This compound is essential for R&D chemists and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel products with specific performance characteristics.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules, leveraging its strained ring system for unique structural motifs.
• Polymer & Resin Monomer: Acts as a key monomer in ring-opening metathesis polymerization (ROMP) and other polymerization techniques to produce specialty polymers, coatings, and adhesives.
• Agrochemical Synthesis: Serves as a precursor in the development of novel herbicides, fungicides, and plant growth regulators.
• Advanced Material Research: Employed in the creation of high-performance materials, including liquid crystal polymers, optical materials, and engineering plastics.
• Crosslinking Agent: Utilized to introduce crosslinks into polymer chains, enhancing thermal stability and mechanical strength in final products.
• Organic Synthesis Reagent: Functions as a dienophile in Diels-Alder reactions and a versatile intermediate for further functional group transformations in fine chemical production.

Basic Information

Item	Details
Product Name	5-Norbornene-2-Carboxylic Acid, Butyl Ester
CAS No.	37981-18-3
Molecular Formula	C₁₂H₁₈O₂
Molecular Weight	194.27 g/mol
Synonyms	Butyl 5-Norbornene-2-carboxylate; Bicyclo[2.2.1]hept-5-ene-2-carboxylic Acid Butyl Ester; 2-Norbornene-5-carboxylic Acid Butyl Ester; 5-Norbornen-2-yl Butyl Carboxylate; Norborneol Butyl Ester Derivative; NBE-Butyl Ester; ROMP Monomer NBE-Bu
EINECS	Contact for details

Quality Control

Our 5-Norbornene-2-Carboxylic Acid, Butyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.470 - 1.480
Density (20°C)	0.98 - 1.02 g/mL

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