Description

3-Bromo-2,3-Dihydrochromen-4-One is a versatile brominated chromenone derivative that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique structure makes it a valuable building block for constructing complex heterocyclic frameworks and functionalized molecules. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those with chromone or coumarin-based structures.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its heterocyclic core for biological activity.
• Material Science: Acts as a monomer or functionalizing agent in the creation of specialized polymers and organic electronic materials.
• Academic & R&D: Essential for methodological studies in organic synthesis, including cyclization reactions and halogenation chemistry.
• Flavor & Fragrance Industry: Serves as a starting material for synthesizing complex aroma chemicals derived from benzopyran motifs.

Basic Information

Product Name	3-Bromo-2,3-Dihydrochromen-4-One
CAS No.	1776-09-6
Molecular Formula	C9H7BrO2
Molecular Weight	227.06 g/mol
Synonyms	3-Bromochroman-4-one; 3-Bromo-4-chromanone; 3-Bromo-3,4-dihydro-2H-1-benzopyran-4-one; 3-Bromo-2,3-dihydro-4H-1-benzopyran-4-one; 4-Chromanone, 3-bromo-; 3-Bromodihydrochromen-4-one; NSC 403697
EINECS	Contact for details

Quality Control

Our 3-Bromo-2,3-Dihydrochromen-4-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your research and development requirements.

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 strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.