Description

Bicyclo[4.2.0]Octa-1,3,5,7-Tetraene-7-Carbonyl Chloride (9Ci) is a highly reactive and versatile chemical building block, specifically an acid chloride derivative of a strained bicyclic hydrocarbon. Its unique, fused ring structure and reactive carbonyl chloride group make it a critical intermediate for synthesizing complex organic molecules and advanced materials. This compound is primarily needed by pharmaceutical R&D teams and specialty chemical manufacturers focused on creating novel compounds with specific electronic or structural properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates with complex polycyclic frameworks.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and pesticides that require a rigid, bicyclic core structure.
• Material Science: Acts as a monomer or cross-linking agent in the production of specialty polymers and advanced organic electronic materials.
• Organic Synthesis: A valuable reagent for introducing the bicyclo[4.2.0]octa-1,3,5,7-tetraene moiety into target molecules via acylations and other coupling reactions.
• Ligand & Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis, leveraging its unique geometry.
• Academic & Industrial R&D: Utilized in research laboratories for exploring new chemical reactions and constructing molecular libraries for screening.

Basic Information

Product Name	Bicyclo[4.2.0]Octa-1,3,5,7-Tetraene-7-Carbonyl Chloride (9Ci)
CAS No.	300544-16-5
Molecular Formula	C9H5ClO
Molecular Weight	164.59 g/mol
Synonyms	7-Carbonylchloridebicyclo[4.2.0]octa-1,3,5,7-tetraene; Bicyclo[4.2.0]octa-1,3,5,7-tetraene-7-carbonyl chloride; Bicyclo[4.2.0]octa-1,3,5,7-tetraene-7-carboxylic acid chloride; 7-Bicyclo[4.2.0]octa-1,3,5,7-tetraenecarbonyl chloride; (9CI) Bicyclo[4.2.0]octa-1,3,5,7-tetraene-7-carbonyl chloride
EINECS	Contact for details

Quality Control

Our Bicyclo[4.2.0]Octa-1,3,5,7-Tetraene-7-Carbonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, GC, and NMR to verify identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent derivative, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Keep away from moisture, heat, and incompatible materials such as bases, alcohols, and amines.

Specification

Item	Specification
Appearance	White to off-white solid or crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 0.5%
Solubility	Soluble in common organic solvents (THF, DCM, DMF)

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