Description

11H,12H-[1]Benzopyrano[2,3-B][1]Benzopyran-11,12-Dione is a specialized heterocyclic organic compound belonging to the benzopyranone class. This high-purity intermediate is valued for its unique fused ring structure, which serves as a critical building block in advanced synthetic chemistry. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system and cardiovascular diseases.
• Agrochemical Research: Used in developing new generations of herbicides and fungicides with enhanced efficacy and environmental profiles.
• Organic Light-Emitting Diodes (OLEDs): Serves as a core structure for electron-transport materials and host materials in display and lighting technologies.
• Dye and Pigment Synthesis: Acts as an intermediate for creating specialized chromophores with specific light-absorption properties.
• Academic & R&D: Fundamental building block in organic chemistry research for studying heterocyclic reactions and constructing complex molecular architectures.
• Material Science: Investigated for use in organic semiconductors and other advanced functional materials.

Basic Information

Product Name	11H,12H-[1]Benzopyrano[2,3-B][1]Benzopyran-11,12-Dione
CAS No.	53543-12-7
Molecular Formula	C₁₇H₈O₄
Molecular Weight	276.24 g/mol
Synonyms	11H,12H-Benzopyrano[2,3-b]benzopyran-11,12-dione; Benzopyrano[2,3-b]benzopyran-11,12-dione; 11H,12H-Benzo[6,7]chromeno[2,3-b]chromene-11,12-dione; Dibenzo[b,g][1,5]dioxocine-6,12-dione; 6,12-Dioxatribenzo[a,d,h]cyclodecene-5,11-dione; 5,11-Dioxatetracyclo[7.7.0.0²,⁷.0¹⁰,¹⁵]hexadeca-1(9),2,4,6,10,12,14-heptaene-4,10-dione
EINECS	Contact for details

Quality Control

Our 11H,12H-[1]Benzopyrano[2,3-B][1]Benzopyran-11,12-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure consistent high quality and reliable performance in your applications. Comprehensive Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its light-sensitive nature and propensity for oxidation, it is recommended to handle under an inert atmosphere for long-term storage and to minimize headspace in opened containers.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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