Description

3-Oxo-3,4-Dihydroquinoxaline-6-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate with a distinct heterocyclic quinoxaline core. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex molecular architectures. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for developing new drug candidates and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, especially those targeting central nervous system (CNS) disorders, oncology, and infectious diseases.
• Agrochemical Research: Serves as a building block for developing new herbicides, fungicides, and insecticides with novel modes of action.
• Material Science: Used in the research and development of organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors, due to its conjugated quinoxaline structure.
• Chemical Biology & Proteomics: Employed as a scaffold or linker in the design of chemical probes and enzyme inhibitors for biological target identification and validation.
• Academic & Contract Research: Essential for synthetic organic chemistry research in universities and contract research organizations (CROs) exploring new heterocyclic chemistry and reaction methodologies.
• Custom Synthesis & Scale-Up: A critical starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) for pilot-scale and commercial-scale production of client-specific molecules.

Basic Information

Product Name	3-Oxo-3,4-Dihydroquinoxaline-6-Carboxylic Acid
CAS No.	1375069-41-2
Molecular Formula	C9H6N2O3
Molecular Weight	190.16 g/mol
Synonyms	6-Quinoxalinecarboxylic acid, 3,4-dihydro-3-oxo-; 3-Oxo-3,4-dihydro-2H-quinoxaline-6-carboxylic acid; Quinoxaline-6-carboxylic acid, 3,4-dihydro-3-oxo-; 1,4-Dihydro-3-oxoquinoxaline-6-carboxylic acid; 3-Oxo-1,4-dihydroquinoxaline-6-carboxylic acid; 6-Carboxy-3-oxo-3,4-dihydroquinoxaline; 3-Keto-3,4-dihydroquinoxaline-6-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-Oxo-3,4-Dihydroquinoxaline-6-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment. We support compliance with REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Complies with ICH Q3C

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