Description

2H-1-Benzopyran-2-Carboxylic Acid, 3,4-Dihydro-, Ethyl Ester is a versatile organic intermediate belonging to the chromane (benzopyran) class of compounds. This high-purity building block is essential for synthetic chemists developing novel active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and advanced material sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of chromane and coumarin-based drug candidates, including potential cardiovascular and central nervous system (CNS) agents.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides that leverage the benzopyran scaffold for bioactivity.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for electron-transport materials or host materials in the fabrication of advanced display technologies.
• Flavor & Fragrance Industry: Employed as a starting material for the synthesis of complex aroma chemicals and flavorants with coumarin-related structures.
• Dye & Pigment Manufacturing: Acts as a core structure for developing specialized chromophores and functional dyes.
• Academic & Contract Research: A valuable reagent for methodological studies in organic synthesis, heterocyclic chemistry, and medicinal chemistry research programs.

Basic Information

Item	Details
Product Name	2H-1-Benzopyran-2-Carboxylic Acid, 3,4-Dihydro-, Ethyl Ester
CAS No.	24698-77-9
Molecular Formula	C₁₂H₁₄O₃
Molecular Weight	206.24 g/mol
Synonyms	Ethyl 3,4-Dihydro-2H-1-benzopyran-2-carboxylate; Ethyl Chromane-2-carboxylate; 2-Carbethoxy-3,4-dihydro-2H-1-benzopyran; 2H-1-Benzopyran-2-carboxylic acid, 3,4-dihydro-, ethyl ester; 3,4-Dihydro-2H-1-benzopyran-2-carboxylic acid ethyl ester; Ethyl 3,4-dihydro-2H-chromene-2-carboxylate; Chromane-2-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2H-1-Benzopyran-2-Carboxylic Acid, 3,4-Dihydro-, Ethyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters 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 controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.