Description

1,4-Dioxaspiro[4.4]Nonane, 6,9-Dimethyl- is a specialized spirocyclic acetal compound with the CAS registry number 56620-00-9. This chemical serves as a valuable building block and intermediate in advanced organic synthesis, prized for its unique structural framework that enables the construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug candidates, particularly those requiring spirocyclic or bridged ring systems.
• Agrochemical Synthesis: Serves as a key precursor for developing novel pesticides and herbicides with specific steric and electronic properties.
• Fragrance and Flavor Chemistry: Acts as a starting material for creating unique musk-like or woody odorants due to its stable, oxygen-containing cyclic structure.
• Material Science Research: Employed in the development of specialty polymers, ligands for catalysis, and advanced organic frameworks.
• Organic Synthesis Building Block: Utilized in academic and industrial research for constructing complex natural product analogs and novel heterocycles.

Basic Information

Product Name	1,4-Dioxaspiro[4.4]Nonane, 6,9-Dimethyl-
CAS No.	56620-00-9
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	6,9-Dimethyl-1,4-dioxaspiro[4.4]nonane; 2,5-Dimethyl-1,4-dioxaspiro[4.4]nonane; Spiro[1,3-dioxolane-2,1'-cyclohexane], 4,5-dimethyl-; 4,5-Dimethyl-1,4-dioxaspiro[4.4]nonane; 6,9-Dimethyl-1,4-dioxaspiro[4.4]nonane (primary IUPAC); Acetal derivative of 2,5-dimethyl-1,4-cyclohexanedione; DMDOSN (abbreviation).
EINECS	Contact for details

Quality Control

Our 1,4-Dioxaspiro[4.4]Nonane, 6,9-Dimethyl- is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C. The container must be kept tightly sealed to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Total impurities ≤ 3.0%
Refractive Index (n20D)	1.450 - 1.460
Density (g/mL at 20°C)	0.98 - 1.02

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