Description

Bicyclopentadienylidene CAS NO 91-12-3 is a highly reactive, strained organic compound featuring a unique bicyclic structure with an exocyclic methylene group. This compound serves as a valuable and versatile intermediate in advanced organic synthesis, particularly for constructing complex polycyclic frameworks. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in creating novel pesticides, herbicides, and plant growth regulators with specific activity profiles.
• Material Science Research: Precursor for developing advanced polymers, resins, and specialty chemicals with tailored properties.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and other cycloadditions to form intricate polycyclic structures.
• Ligand and Catalyst Development: Serves as a starting material for synthesizing novel organometallic complexes and catalytic systems.
• Academic & Industrial R&D: Fundamental reagent for exploratory chemistry and process development in fine chemical production.

Basic Information

Product Name	Bicyclopentadienylidene
CAS No.	91-12-3
Molecular Formula	C11H10
Molecular Weight	142.20 g/mol
Synonyms	Bicyclo[2.2.1]hepta-2,5-dien-2-ylidene; 2,5-Norbornadien-2-ylidene; 2,5-Norbornadienylidene; 2,5-Cycloheptadien-2-ylidene, bicyclo[2.2.1]hept-2,5-dien-2-ylidene; 2-Norbornadienylidene; Tricyclo[5.2.2.02,6]undeca-3,8,10-triene (derivative)
EINECS	202-044-4

Quality Control

Our Bicyclopentadienylidene is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic and spectroscopic methods, to confirm identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound may be sensitive to prolonged exposure to air and moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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