Description

1,5-Dioxaspiro[5.5]Undec-3-En-2-One is a specialized spirocyclic lactone compound that serves as a valuable synthetic intermediate in advanced organic chemistry. Its unique bridged structure makes it a versatile building block for constructing complex molecular architectures, particularly in pharmaceutical and fine chemical research. This high-purity compound is essential for R&D chemists and process development scientists working on novel active ingredients, agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug candidates, particularly those with spirocyclic or bridged ring systems for neurological and anti-inflammatory applications.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where its spiro structure can contribute to unique biological activity.
• Fine Chemical Building Block: Employed in the production of specialty chemicals, flavors, fragrances, and advanced materials requiring specific stereochemistry.
• Academic & Industrial R&D: Serves as a critical reagent in methodological studies and the discovery of new synthetic routes in organic chemistry laboratories worldwide.
• Material Science Research: Investigated as a monomer or precursor for polymers with specific thermal or mechanical properties due to its rigid, bicyclic framework.

Basic Information

Product Name	1,5-Dioxaspiro[5.5]Undec-3-En-2-One
CAS No.	94691-90-4
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	1,5-Dioxaspiro[5.5]undec-3-en-2-one; 3H-1,5-Dioxaspiro[5.5]undec-3-en-2-one; Spiro[1,3-dioxolane-2,6'-[5]oxacyclononen]-4'-one; 2-Oxaspiro[4.5]dec-7-ene-1,4-dione ethylene ketal; 7-Oxabicyclo[4.3.0]non-4-ene-8-one ethylene ketal
EINECS	Contact for details

Quality Control

Our 1,5-Dioxaspiro[5.5]Undec-3-En-2-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research and development applications. Each lot is analyzed using advanced chromatographic and spectroscopic techniques (HPLC, GC, NMR) to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, and we support custom purity grades to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 10 ppm

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