Description

2-Oxaspiro[4.4]Nonane-1,3-Dione is a high-purity, specialized organic compound featuring a unique spirocyclic structure. This compound serves as a versatile and valuable chemical intermediate and building block in advanced synthetic chemistry. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical and fine chemical sectors for developing novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Used in the production of specialty chemicals, fragrances, and advanced materials requiring specific spirocyclic motifs.
• Organic Research & Development: Serves as a critical reagent in academic and industrial R&D for exploring new synthetic methodologies and creating novel molecular architectures.
• Agrochemical Development: Potential intermediate in the synthesis of new generation pesticides and herbicides with unique modes of action.
• Polymer Chemistry: Can be utilized as a monomer or cross-linking agent for creating polymers with specialized thermal or mechanical properties.

Basic Information

Product Name	2-Oxaspiro[4.4]Nonane-1,3-Dione
CAS No.	5623-90-5
Molecular Formula	C8H10O3
Molecular Weight	154.16 g/mol
Synonyms	1,3-Dioxaspiro[4.4]nonane-2,4-dione; Spiro[1,3-dioxolane-2,1'-cyclopentane]-4,5-dione; 2-Oxaspiro[4.4]nonane-1,3-dione; Cyclopentanone, cyclic ethylene ketal of α-ketoglutaric acid; α-Ketoglutaric acid ethylene ketal; Ethylene ketal of α-ketoglutaric acid; 1,3-Dioxolane-2,2-dicarboxylic acid, 1,1'-cyclopentanediyl ester
EINECS	227-058-1

Quality Control

Our 2-Oxaspiro[4.4]Nonane-1,3-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request.

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). Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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