Description

8-Methylene-1,4-Dioxa-Spiro[4.5]Decane is a specialized spirocyclic acetal compound, serving as a versatile and valuable building block in advanced organic synthesis. Its unique bridged structure makes it a key intermediate for constructing complex molecular architectures, particularly in the pharmaceutical and fine chemical sectors. This high-purity intermediate is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), agrochemicals, and functional materials who require reliable, high-quality synthetic precursors.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring spirocyclic or bridged ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, where its structure contributes to biological activity.
• Fine Chemical Production: Serves as a key precursor in the manufacture of specialty chemicals, flavors, fragrances, and performance materials.
• Polymer & Material Science: Employed in the development of novel polymers, resins, and advanced materials with specific thermal or mechanical properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for constructing complex, multi-cyclic organic compounds and exploring new chemical methodologies.

Basic Information

Product Name	8-Methylene-1,4-Dioxa-Spiro[4.5]Decane
CAS No.	51656-90-7
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	8-Methylenebicyclo[3.3.0]octane-2,6-dione ethylene acetal; 8-Methylene-1,4-dioxaspiro[4.5]decane; 1,4-Dioxaspiro[4.5]dec-8-ene; 8-Methylenebicyclo[3.3.0]octane-2,6-dione cyclic ethylene ketal; Spiro[1,3-dioxolane-2,1'(5')-bicyclo[3.3.0]octan]-8'-ene
EINECS	Contact for details

Quality Control

Our 8-Methylene-1,4-Dioxa-Spiro[4.5]Decane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (IR, NMR), to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee it meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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