Description

4H-1-Benzopyran-6-Acetic Acid, 2-(4-Chlorophenyl)-α-Ethyl-3-Methox Y-4-Oxo-, Methyl Ester is a high-purity, synthetic organic compound belonging to the benzopyran chemical class. This intermediate is valued for its precise molecular structure, which is critical for advanced pharmaceutical synthesis and fine chemical research. It is primarily sought by R&D chemists and process development teams in the pharmaceutical and agrochemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its chlorophenyl and benzopyran motifs for bioactivity.
• Fine Chemical Synthesis: Serves as a versatile precursor for creating specialized dyes, pigments, and functional materials.
• Academic & Industrial R&D: Employed in chemical research to study structure-activity relationships (SAR) and develop new synthetic methodologies.
• Reference Standard: Used as an analytical standard in quality control laboratories for method development and validation.

Basic Information

Product Name	4H-1-Benzopyran-6-Acetic Acid, 2-(4-Chlorophenyl)-α-Ethyl-3-Methox Y-4-Oxo-, Methyl Ester
CAS No.	173469-85-7
Molecular Formula	C21H19ClO5
Molecular Weight	386.83 g/mol
Synonyms	Methyl 2-(4-chlorophenyl)-α-ethyl-3-methoxy-4-oxo-4H-1-benzopyran-6-acetate; 2-(4-Chlorophenyl)-α-ethyl-3-methoxy-4-oxo-4H-chromene-6-acetic acid methyl ester; 4H-Chromene-6-acetic acid, 2-(4-chlorophenyl)-α-ethyl-3-methoxy-4-oxo-, methyl ester; 173469-85-7; Chromene derivative ester; Benzopyran acetic acid ester intermediate.
EINECS	Contact for details

Quality Control

Our 4H-1-Benzopyran-6-Acetic Acid, 2-(4-Chlorophenyl)-α-Ethyl-3-Methox Y-4-Oxo-, Methyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.