Description

7-Hydroxy-6-Nitro-4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid Ethyl Ester is a specialized chromone derivative, a key heterocyclic scaffold in advanced organic synthesis. This compound matters as a versatile and high-purity building block for developing novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily needed by research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries for creating new molecules with targeted biological or physical properties.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting inflammation, cancer, and central nervous system disorders.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Fine Chemical Synthesis: Acts as a key starting material for synthesizing complex chromone and flavonoid analogs for various industrial applications.
• Material Science: Investigated for the development of organic semiconductors, fluorescent dyes, and photoresponsive materials due to its conjugated chromone core.
• Academic & Contract Research: Essential for medicinal chemistry programs and structure-activity relationship (SAR) studies in university and CRO laboratories.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in API manufacturing.

Basic Information

Product Name	7-Hydroxy-6-Nitro-4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid Ethyl Ester
CAS No.	5823-37-0
Molecular Formula	C₁₂H₉NO₇
Molecular Weight	279.20 g/mol
Synonyms	Ethyl 7-Hydroxy-6-nitro-4-oxo-4H-chromene-2-carboxylate; 6-Nitro-7-hydroxy-4-oxo-4H-1-benzopyran-2-carboxylic Acid Ethyl Ester; 2-Carbethoxy-7-hydroxy-6-nitro-4-chromone; 7-Hydroxy-6-nitro-4-oxochromene-2-carboxylic Acid Ethyl Ester; Chromone-2-carboxylic Acid, 7-Hydroxy-6-nitro-4-oxo-, Ethyl Ester; 5823-37-0; Ethyl 7-hydroxy-6-nitro-4-oxo-4H-chromene-2-carboxylate
EINECS	Contact for details

Quality Control

Our 7-Hydroxy-6-Nitro-4-Oxo-4H-1-Benzopyran-2-Carboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity (typically ≥95% by HPLC), physical characteristics, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber or opaque.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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