Description

4(3H)-Quinolinone(9Ci) is a versatile heterocyclic organic compound belonging to the quinolinone family, serving as a crucial synthetic intermediate. Its value lies in its core structure, which is a privileged scaffold in medicinal chemistry for developing novel active pharmaceutical ingredients (APIs). This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, where it is used to construct complex molecules with targeted biological or functional properties.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of potential drug candidates, including kinase inhibitors, antimicrobials, and anti-inflammatory agents.
• Agrochemical Research: Used in developing new herbicides, fungicides, and pesticides by modifying the quinolinone core.
• Material Science Precursor: Serves as a starting material for creating organic electronic materials, ligands for catalysis, and fluorescent dyes.
• Academic & R&D: Fundamental reagent in organic synthesis laboratories for method development and exploring new chemical reactions.
• Chemical Reference Standard: Used for analytical method development, validation, and quality control in regulatory testing.

Basic Information

Item	Detail
Product Name	4(3H)-Quinolinone(9Ci)
CAS No.	758684-45-6
Molecular Formula	C9H7NO
Molecular Weight	145.16 g/mol
Synonyms	4(3H)-Quinolinone; 4-Hydroxyquinoline; 4-Quinolinol; 4-Quinolone; 4-Oxoquinoline; Quinolin-4(1H)-one; 1H-Quinolin-4-one; 4-Hydroxyquinoline (9CI)
EINECS	Contact for details

Quality Control

Our 4(3H)-Quinolinone(9Ci) is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, IR and NMR for structural confirmation, and residual solvent analysis. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory 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 heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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