Description

1H-2-Benzopyran-1-One, 5-Bromo-3,4-Dihydro- is a high-purity brominated dihydroisocoumarin derivative, a valuable synthetic intermediate in advanced organic chemistry. Its core value lies in its precise molecular structure, which serves as a critical building block for constructing complex heterocyclic frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, especially those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or plant growth regulators, leveraging its heterocyclic core.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing complex molecules in medicinal and process chemistry due to its reactive bromine and lactone functionalities.
• Material Science Research: Potential intermediate for creating novel organic electronic materials or specialty polymers with specific optical properties.
• Academic & R&D: Utilized in university and corporate research laboratories for methodological studies and exploring new chemical reactions.

Basic Information

Product Name	1H-2-Benzopyran-1-One, 5-Bromo-3,4-Dihydro-
CAS No.	1812221-73-0
Molecular Formula	C9H7BrO2
Molecular Weight	227.06 g/mol
Synonyms	5-Bromo-3,4-dihydroisocoumarin; 5-Bromo-3,4-dihydro-1H-2-benzopyran-1-one; 5-Bromochroman-1-one; 5-Bromo-3,4-dihydro-2H-1-benzopyran-1-one; 5-Bromo-3,4-dihydrocoumarin (common misnomer, structurally accurate); 5-Bromo-3,4-dihydro-1H-isochromen-1-one
EINECS	Contact for details

Quality Control

Our production of 1H-2-Benzopyran-1-One, 5-Bromo-3,4-Dihydro- adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is characterized by advanced analytical techniques including HPLC, GC-MS, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is 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 place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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