Description

2H-1-Benzopyran-3-Carboxylic Acid, 7-Chloro-2-Oxo- is a high-purity, light-sensitive organic compound with the CAS number 20300-58-7. This versatile heterocyclic carboxylic acid serves as a critical building block in advanced organic synthesis, enabling the development of novel active pharmaceutical ingredients and specialty chemicals. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for its role in creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel drug candidates, particularly in therapeutic areas requiring chromone or coumarin-based scaffolds.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, leveraging its heterocyclic structure for biological activity.
• Fine Chemical Manufacturing: Serves as a versatile precursor for synthesizing dyes, pigments, and other specialty organic compounds.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic chemistry and material science.
• Chemical Reference Standard: Employed as a high-purity analytical standard for quality control and method validation in laboratories.

Basic Information

Product Name	2H-1-Benzopyran-3-Carboxylic Acid, 7-Chloro-2-Oxo-
CAS No.	20300-58-7
Molecular Formula	C10H5ClO4
Molecular Weight	224.60 g/mol
Synonyms	7-Chloro-2-oxo-2H-chromene-3-carboxylic acid; 7-Chloro-2-oxo-2H-1-benzopyran-3-carboxylic acid; 7-Chloro-3-carboxycoumarin; 7-Chlorocoumarin-3-carboxylic acid; 7-Chloro-2-oxochroman-3-carboxylic acid; 7-Chloro-2-oxo-2H-chromene-3-carboxylate (anion form); 7-Chloro-2-oxo-2H-1-benzopyran-3-carboxylate
EINECS	Contact for details

Quality Control

Our 2H-1-Benzopyran-3-Carboxylic Acid, 7-Chloro-2-Oxo- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing all specifications are available upon request.

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). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	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.