Description

2-Biphenylenecarbonyl Chloride (9Ci) is a specialized aromatic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its high reactivity, enabling efficient formation of amide and ester bonds under mild conditions, which is essential for constructing complex molecular architectures. This compound is primarily needed by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and materials science sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of novel drug candidates, particularly for creating amide-linked active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, where the biphenylene moiety can contribute to biological activity.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers with unique thermal or mechanical properties.
• Ligand and Catalyst Preparation: Serves as a precursor for synthesizing complex ligands used in homogeneous catalysis and metal-organic frameworks (MOFs).
• Organic Electronic Materials: Employed in the research and development of organic semiconductors and light-emitting materials.
• Custom Synthesis and Contract Research: A valuable tool for custom synthesis houses and CROs (Contract Research Organizations) working on client-specific molecular targets.

Basic Information

Product Name	2-Biphenylenecarbonyl Chloride (9Ci)
CAS No.	75292-39-6
Molecular Formula	C13H7ClO
Molecular Weight	214.65 g/mol
Synonyms	2-Phenanthroyl Chloride; Biphenylene-2-carbonyl Chloride; 2-Carboxybiphenylene Chloride; 9H-Fluorene-9-carbonyl Chloride, 9Ci; 2-Biphenylylcarbonyl Chloride; Fluorene-9-carbonyl Chloride (ambiguous, check structure); 9-Cyanofluorene related acid chloride (precursor)
EINECS	Contact for details

Quality Control

Every batch of 2-Biphenylenecarbonyl Chloride is produced and tested under strict quality management protocols to ensure consistency and reliability for your synthetic workflows. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles. Our quality systems are designed to support cGMP and ISO standards for research and development use, ensuring traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids, bases, and oxidizing agents. Ensure adequate ventilation in the storage area and handle in a fume hood.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility	Soluble in common organic solvents (e.g., THF, DCM, DMF)

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