Description

4-Oxochromane-7-Carboxylic Acid is a high-purity organic compound belonging to the chromane family, serving as a versatile and critical building block in advanced chemical synthesis. Its value lies in its unique bicyclic structure, which provides a privileged scaffold for developing novel active pharmaceutical ingredients (APIs) and fine chemicals. This intermediate is essential for research and production teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create new molecules with targeted properties.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly for central nervous system (CNS) and cardiovascular therapies.
• Agrochemical Synthesis: Used as a precursor in the manufacture of advanced pesticides and herbicides, leveraging its chromane core for biological activity.
• Fine Chemical Production: Serves as a building block for synthesizing complex dyes, pigments, and functional materials.
• Academic & Contract Research: A valuable reagent for medicinal chemistry programs and process development in academic and contract research organizations (CROs).
• Chemical Reference Standard: Employed as an analytical standard for quality control and method development in laboratories.

Basic Information

Product Name	4-Oxochromane-7-Carboxylic Acid
CAS No.	90921-09-8
Molecular Formula	C10H8O4
Molecular Weight	192.17 g/mol
Synonyms	7-Carboxy-4-oxochromane; 4-Oxo-4H-chromene-7-carboxylic acid; 4-Oxo-4H-1-benzopyran-7-carboxylic acid; 7-Carboxy-4-chromanone; Chroman-4-one-7-carboxylic acid; 90921-09-8; 4-Oxo-chromane-7-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Oxochromane-7-Carboxylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting all critical quality attributes. Our production adheres to cGMP principles where applicable, ensuring reliability for your most demanding synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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