Description

4(1H)-Cinnolinone, 3-Chloro- is a high-purity, specialized heterocyclic organic compound identified by CAS NO 817209-39-5. This chemical serves as a critical synthetic intermediate and building block in advanced pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists working in medicinal chemistry and fine chemical synthesis. The compound's unique cinnolinone core structure enables the development of novel active ingredients with targeted biological properties.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring heterocyclic scaffolds.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its bioactive heterocyclic structure.
• Medicinal Chemistry: Serves as a core scaffold for structure-activity relationship (SAR) studies and the optimization of lead compounds.
• Fine Chemical Synthesis: Employed in multi-step organic syntheses to introduce the chlorinated cinnolinone moiety into more complex molecules.
• Biochemical Tool Compound: Potential use in biochemical assays and as a probe for studying enzyme interactions or biological pathways.
• Material Science Research: Investigated as a precursor for organic electronic materials or specialty polymers due to its conjugated system.

Basic Information

Product Name	4(1H)-Cinnolinone, 3-Chloro-
CAS No.	817209-39-5
Molecular Formula	C8H5ClN2O
Molecular Weight	180.59 g/mol
Synonyms	3-Chloro-1H-cinnolin-4-one; 3-Chloro-4(1H)-cinnolinone; 3-Chlorocinnolin-4(1H)-one; 3-Chloro-1,2-dihydrocinnolin-4-one; 3-Chloro-4-hydroxycinnoline; 817209-39-5; 3-Chloro-4-cinnolinone
EINECS	Contact for details

Quality Control

Our 4(1H)-Cinnolinone, 3-Chloro- is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications. Our quality commitment supports applications requiring high-purity reference standards and intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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