Description

7-Oxaspiro[3.5]Nonan-2-One is a high-value, specialized organic compound featuring a unique spirocyclic ether-ketone structure. This versatile building block is critical for advanced organic synthesis, particularly in the development of complex molecules for pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and agrochemical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for candidates with complex spirocyclic or bridged ring systems.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides where its unique scaffold can impart specific biological activity.
• Material Science Research: Serves as a precursor for developing specialty polymers, ligands, or functional materials with tailored properties.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including ring-opening reactions, cross-coupling, and other transformations to explore new chemical space.
• Flavor & Fragrance Industry: Potential use as an intermediate for synthesizing novel musk or other complex odorant molecules.

Basic Information

Product Name	7-Oxaspiro[3.5]Nonan-2-One
CAS No.	1339892-75-9
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	7-Oxaspiro[3.5]nonan-2-one; 2-Oxaspiro[4.4]nonan-8-one; Spiro[3.5]nonane-7,2'-oxiran]-8-one; Tetrahydro-4H-spiro[oxirene-2,1'-cyclopentane]-4-one; Oxaspiro[3.5]nonan-2-one; 1-Oxaspiro[2.5]octane-2-carboxaldehyde (tautomeric form); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 7-Oxaspiro[3.5]Nonan-2-One is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure high chemical purity and structural identity. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications in cGMP and other regulated environments.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%

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