Description

7,7,9-Trimethyl-1,4-Dioxaspiro[4.5]Decane is a specialized spirocyclic acetal compound, serving as a valuable protected form of a ketone or aldehyde intermediate. This chemical matters for its role in enabling complex synthetic pathways where selective protection and deprotection are required. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for the synthesis of novel active ingredients and complex organic molecules.

Application

• Pharmaceutical Intermediate: Used as a key building block in the multi-step synthesis of active pharmaceutical ingredients (APIs), particularly where sensitive functional groups must be protected.
• Agrochemical Synthesis: Employed in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor or protected intermediate in the manufacture of specialty chemicals, flavors, and fragrances.
• Academic & Industrial R&D: Serves as a versatile reagent in organic chemistry research for methodology development and the construction of complex molecular architectures.
• Material Science: Potential use as a monomer or cross-linking agent in the development of specialized polymers and resins.

Basic Information

Product Name	7,7,9-Trimethyl-1,4-Dioxaspiro[4.5]Decane
CAS No.	941-29-7
Molecular Formula	C11H20O2
Molecular Weight	184.28 g/mol
Synonyms	7,7,9-Trimethyl-1,4-dioxaspiro[4.5]decane; 1,4-Dioxaspiro[4.5]decane, 7,7,9-trimethyl-; 2,2,4-Trimethyl-1,3-cyclohexanedione ethylene ketal; 2,2,4-Trimethylcyclohexane-1,3-dione ethylene ketal; Trimethyl-1,4-dioxaspiro[4.5]decane; Spirocyclic acetal of 2,2,4-trimethyl-1,3-cyclohexanedione
EINECS	213-383-6

Quality Control

Our 7,7,9-Trimethyl-1,4-Dioxaspiro[4.5]Decane is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 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.