Description

9-Bromo-3-Chloro-10,11-Dihydro-5H-Benzo[D]Naphtho[2,3-B]Pyran-8(9H)-One is a high-purity, complex heterocyclic organic compound serving as a critical advanced intermediate in modern synthetic chemistry. Its intricate fused-ring structure makes it a valuable building block for the development of novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought by research institutions and pharmaceutical companies engaged in the synthesis of complex molecules for therapeutic and high-tech applications.

Application

• Pharmaceutical Intermediate: Key precursor in the multi-step synthesis of novel drug candidates, particularly in oncology and central nervous system (CNS) therapeutic areas.
• Organic Light-Emitting Diode (OLED) Research: Serves as a core structure for developing new electron-transport or host materials due to its rigid, conjugated framework.
• Agrochemical Synthesis: Used in research to create new active ingredients for crop protection with potential novel modes of action.
• Material Science: Building block for synthesizing specialized polymers and dyes with specific optical or electronic properties.
• Academic & Contract Research: Essential reagent for methodological development and exploring new chemical reactions in academic and industrial R&D laboratories.

Basic Information

Product Name	9-Bromo-3-Chloro-10,11-Dihydro-5H-Benzo[D]Naphtho[2,3-B]Pyran-8(9H)-One
CAS No.	1378388-22-7
Molecular Formula	C20H13BrClO2
Molecular Weight	415.68 g/mol
Synonyms	9-Bromo-3-chloro-10,11-dihydro-5H-dibenzo[b,f]pyran-8(9H)-one; 9-Bromo-3-chloro-10,11-dihydro-5H-benzo[5,6]chromeno[3,4-c]pyran-8-one; 1378388-22-7; 9-Bromo-3-chloro-10,11-dihydro-5H-dibenzo[b,f]pyran-8-one; 9-Bromo-3-chloro-10,11-dihydro-5H-benzo[d]naphtho[2,3-b]pyran-8(9H)-one; BCPO Intermediate; Dihydrobenzochromenone derivative
EINECS	Contact for details

Quality Control

Our 9-Bromo-3-Chloro-10,11-Dihydro-5H-Benzo[D]Naphtho[2,3-B]Pyran-8(9H)-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment to support your quality assurance and regulatory needs.

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). Keep the container sealed to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.