Description

4H,5H-Pyrano[4,3-B]Pyran-4,5-Dione,2-Ethyl-2,3-Dihydro-7-Methyl-(9Ci) is a specialized heterocyclic compound that serves as a valuable synthetic intermediate and building block in advanced organic chemistry. Its unique fused pyran-dione structure makes it a critical precursor for developing novel pharmaceuticals, agrochemicals, and functional materials. This high-purity compound is essential for research institutions and industrial R&D departments focused on medicinal chemistry, material science, and fine chemical synthesis.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in developing compounds with potential biological activity.
• Agrochemical Research: Used in creating advanced active ingredients for crop protection and novel pesticide formulations.
• Material Science: Serves as a precursor for organic electronic materials, dyes, and photoactive compounds.
• Academic & Industrial R&D: A crucial reagent for methodological development in organic synthesis and heterocyclic chemistry.
• Fine Chemical Synthesis: Employed in the multi-step synthesis of complex, high-value specialty chemicals.
• Ligand & Catalyst Development: Potential use in designing novel chelating ligands or organocatalysts due to its oxygen-rich structure.

Basic Information

Item	Details
Product Name	4H,5H-Pyrano[4,3-B]Pyran-4,5-Dione,2-Ethyl-2,3-Dihydro-7-Methyl-(9Ci)
CAS No.	516482-61-4
Molecular Formula	C11H12O4
Molecular Weight	208.21 g/mol
Synonyms	2-Ethyl-2,3-dihydro-7-methyl-4H,5H-pyrano[4,3-b]pyran-4,5-dione; 2-Ethyl-7-methyl-2,3-dihydro-4H,5H-pyrano[4,3-b]pyran-4,5-dione; 4H,5H-Pyrano[4,3-b]pyran-4,5-dione, 2-ethyl-2,3-dihydro-7-methyl-; 516482-61-4; 9CI Index Name; Ethylmethylpyranopyrandione
EINECS	Contact for details

Quality Control

Our production of 4H,5H-Pyrano[4,3-B]Pyran-4,5-Dione,2-Ethyl-2,3-Dihydro-7-Methyl-(9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity assessment and NMR/IR for structural confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support custom synthesis under cGMP conditions for advanced pharmaceutical applications upon request.

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 heat, sparks, and open flames. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.