Description

2H,8H-Benzo[1,2-B:5,4-B']Dipyran-2,8-Dione is a high-purity, specialized organic compound with the CAS registry number 4413-05-2. This heterocyclic dione serves as a valuable advanced intermediate and key building block in sophisticated chemical synthesis. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and functional materials sectors for developing novel active ingredients and complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly for complex heterocyclic scaffolds.
• Agrochemical Synthesis: Used as a building block for developing new-generation herbicides, fungicides, and plant growth regulators.
• Organic Electronic Materials: Serves as a core structure in the research and development of organic semiconductors and light-emitting materials.
• Dye & Pigment Chemistry: Acts as an intermediate for synthesizing specialized dyes and high-performance pigments.
• Ligand & Catalyst Development: Utilized in creating novel chelating ligands and organocatalysts for asymmetric synthesis.
• Polymer & Resin Modifier: Incorporated into polymer backbones to impart specific thermal or optical properties.
• Academic & Industrial R&D: A key reagent for methodological studies and exploring new chemical reactions in research laboratories.

Basic Information

Product Name	2H,8H-Benzo[1,2-B:5,4-B']Dipyran-2,8-Dione
CAS No.	4413-05-2
Molecular Formula	C13H6O4
Molecular Weight	226.18 g/mol
Synonyms	Benzo[1,2-b:5,4-b']dipyran-2,8-dione; 2H,8H-Benzo[1,2-b:5,4-b']dipyran-2,8-dione; Benzo[1,2-b:5,4-b']dipyran-2,8-dione, 2H,8H-; 2,8-Dihydroxybenzo[1,2-b:5,4-b']dipyran-2,8-dione; Benzo-1,2-b:5,4-b'-dipyran-2,8-dione; 4413-05-2 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our 2H,8H-Benzo[1,2-B:5,4-B']Dipyran-2,8-Dione is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specification parameters are provided and available upon request. We support cGMP and ISO compliant documentation for critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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