Description

3,8-Dioxaspiro[4.4]Nonane-4,9-Dione CAS NO 4372-10-5 is a specialized spirocyclic diketone compound with a unique molecular architecture. This structure makes it a valuable and versatile chemical intermediate for synthesizing complex organic molecules. It is primarily sought after by pharmaceutical, agrochemical, and advanced material research sectors for the development of novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug candidates, particularly those requiring spirocyclic or bridged ring systems.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides with novel modes of action.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers with specific thermal or mechanical properties.
• Organic Synthesis Reagent: Employed in academic and industrial R&D labs for constructing complex molecular frameworks in natural product synthesis and methodology development.
• Flavor & Fragrance Ingredient Precursor: Potential intermediate for synthesizing musk-like or other complex aroma chemicals.
• Ligand & Catalyst Development: Its diketone functionality can be utilized to create chelating ligands for metal catalysts used in asymmetric synthesis.

Basic Information

Product Name	3,8-Dioxaspiro[4.4]Nonane-4,9-Dione
CAS No.	4372-10-5
Molecular Formula	C7H8O4
Molecular Weight	156.14 g/mol
Synonyms	4,9-Dioxaspiro[2.5]octane-5,8-dione; 1,4-Dioxaspiro[4.4]nonane-2,5-dione; Spiro[1,3-dioxolane-2,1'-cyclopentane]-4,4'-dione; 3,8-Dioxaspiro[4.4]nonane-4,9-dione; Cyclopentanespiro-2'-(1',3'-dioxolane)-4,4'-dione
EINECS	Contact for details

Quality Control

Our 3,8-Dioxaspiro[4.4]Nonane-4,9-Dione is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
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.