Description

1-Oxaspiro[3.5]Nonan-2-One, 3-Methylene- is a specialized spirocyclic lactone derivative featuring a reactive exocyclic methylene group. This unique structure makes it a valuable high-purity chemical intermediate for advanced organic synthesis, particularly in the development of complex molecular architectures. It is primarily sought after by research and development teams in the pharmaceutical, agrochemical, and advanced material science sectors for constructing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel spirocyclic drug candidates, including potential central nervous system (CNS) agents and anti-infectives.
• Agrochemical Synthesis: Used in the research and development of new-generation herbicides and fungicides with spirocyclic motifs for enhanced efficacy.
• Advanced Material Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers with tailored thermal and mechanical properties.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for [2+2] cycloadditions and other reactions leveraging its strained, reactive lactone ring.
• Fragrance & Flavor Chemistry: Potential intermediate for creating complex macrocyclic and spirocyclic musk or flavor compounds.

Basic Information

Product Name	1-Oxaspiro[3.5]Nonan-2-One, 3-Methylene-
CAS No.	135638-62-9
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	3-Methylene-1-oxaspiro[3.5]nonan-2-one; 3-Methylenespiro[4.4]nonane-1,5-dione (tautomer); Spiro[4.4]nonane-1,5-dione, 3-methylene-; 3-Methylenespiro[4.4]nonane-1,5-dione; 1-Oxaspiro[3.5]nonan-2-one, 3-methylene-; 3-Methylene-1-oxaspiro[3.5]nonan-2-one; 135638-62-9
EINECS	Contact for details

Quality Control

Our production of 1-Oxaspiro[3.5]Nonan-2-One, 3-Methylene- adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. All materials are characterized by advanced analytical techniques including NMR, HPLC, and GC-MS. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The compound is stable under inert atmosphere but should be kept away from strong bases and incompatible organic solvents as indicated in the SDS. For long-term storage, consider sealing under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 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.