Description

1,4-Dioxaspiro[4.4]Nonane-7,8-Dione is a high-purity, specialized spirocyclic diketone compound, identified by CAS number 603128-91-2. It serves as a versatile and critical advanced pharmaceutical intermediate and organic synthesis building block for constructing complex molecular architectures. This product is essential for R&D and production teams in the pharmaceutical, agrochemical, and fine chemical sectors seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug candidates, particularly those requiring spirocyclic or fused ring systems for enhanced biological activity.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, where its unique structure can contribute to novel modes of action.
• Fine Chemical Production: Serves as a precursor for specialty chemicals, including dyes, pigments, and performance materials requiring specific diketone functionality.
• Organic Synthesis & Research: A valuable reagent for academic and industrial chemists exploring new reactions, catalysis, and the construction of complex natural product analogs.
• Material Science: Potential monomer or cross-linking agent in the development of polymers with specific thermal or mechanical properties.

Basic Information

Product Name	1,4-Dioxaspiro[4.4]Nonane-7,8-Dione
CAS No.	603128-91-2
Molecular Formula	C9H10O4
Molecular Weight	182.17 g/mol
Synonyms	7,8-Dioxaspiro[4.4]nonane-1,4-dione; Spiro[1,3-dioxolane-2,2'-bicyclo[3.2.0]heptane]-4',5'-dione; 1,4-Dioxaspiro[4.4]nonane-7,8-dione; Bicyclo[3.2.0]heptane-2,3-dione, 1,3-dioxolane deriv.; 7,8-Dioxaspirobicyclo[4.4]nonane-1,4-dione
EINECS	Contact for details

Quality Control

Our 1,4-Dioxaspiro[4.4]Nonane-7,8-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong bases, reducing agents, and strong oxidizing agents. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white 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%

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