Description

4-Methylene-7,7,9,9-Tetramethyl-1,3-Dioxa-8-Azaspiro[4.5]Decane-2-One is a specialized heterocyclic compound featuring a unique spirocyclic structure, which is highly valued for its role as a key synthetic intermediate and functional additive. This compound matters for its ability to impart specific chemical properties, such as acting as a hindered amine light stabilizer (HALS) precursor or a reactive monomer, enhancing the performance and durability of advanced materials. Industries involved in polymer science, specialty coatings, and high-performance additive manufacturing require this chemical for developing products with superior stability and tailored functionalities.

Application

• As a key intermediate in the synthesis of advanced Hindered Amine Light Stabilizers (HALS) for plastics and coatings.
• As a reactive monomer or cross-linking agent in the production of specialty polymers and resins with enhanced weatherability.
• In the formulation of UV-curable coatings and inks to improve film properties and longevity.
• As a building block in pharmaceutical research for constructing complex nitrogen-containing heterocycles.
• In the development of adhesives and sealants requiring high thermal and oxidative stability.
• For research and development in material science to create novel functional additives.

Basic Information

Product Name	4-Methylene-7,7,9,9-Tetramethyl-1,3-Dioxa-8-Azaspiro[4.5]Decane-2-One
CAS No.	309283-87-2
Molecular Formula	C13H21NO3
Molecular Weight	239.31 g/mol
Synonyms	2-Oxo-4-methylene-7,7,9,9-tetramethyl-1,3-dioxa-8-azaspiro[4.5]decane; 4-Methylene-7,7,9,9-tetramethyl-1,3-dioxa-8-azaspiro[4.5]decan-2-one; Spirocyclic HALS Intermediate; Light Stabilizer Precursor; Tetramethyl Spirocyclic Lactone; 8-Azaspiro[4.5]decane-2-one derivative
EINECS	Contact for details

Quality Control

Our production of 4-Methylene-7,7,9,9-Tetramethyl-1,3-Dioxa-8-Azaspiro[4.5]Decane-2-One adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. All materials undergo rigorous analytical testing, including chromatography and spectroscopy, to confirm identity and meet specified impurity profiles. Certificates of Analysis (COA) documenting purity, assay, and related substances are available upon request to support your quality assurance and regulatory compliance needs.

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 strong oxidizing agents and incompatible materials. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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