Description

4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid is a versatile heterocyclic carboxylic acid derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in its bifunctional chromone scaffold, which is integral for constructing complex molecules with targeted biological and material properties. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Core building block for the synthesis of chromone and flavonoid derivatives with potential therapeutic activities.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides.
• Organic Synthesis Reagent: Key starting material for preparing fused heterocycles, dyes, and complex organic ligands.
• Material Science Research: Investigated as a precursor for organic semiconductors, fluorescent probes, and metal-organic frameworks (MOFs).
• Academic & R&D: A valuable reference standard and reagent in university and corporate research laboratories for methodological studies.

Basic Information

Product Name	4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid
CAS No.	4940-39-0
Molecular Formula	C10H6O4
Molecular Weight	190.15 g/mol
Synonyms	2-Carboxychromone; Chromone-2-carboxylic acid; 2-Carboxy-4H-chromen-4-one; 4-Oxo-4H-chromene-2-carboxylic acid; 4-Oxo-4H-benzopyran-2-carboxylic acid; Coumarilic acid (related); 1-Benzopyran-2-carboxylic acid, 4-oxo-; 2-Chromonecarboxylic acid
EINECS	225-570-4

Quality Control

Our 4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with detailed specifications are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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