Description

Spiro[5.5]Undec-1-En-3-One CAS NO 30834-42-5 is a specialized spirocyclic ketone building block of significant interest in advanced organic synthesis. Its unique bridged ring structure and reactive enone functionality make it a valuable precursor for constructing complex molecular architectures. This compound is primarily sought by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly those requiring complex, three-dimensional spirocyclic frameworks.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides where specific steric and electronic properties are required.
• Fine Chemical Production: Serves as a versatile building block for synthesizing specialty chemicals, flavors, and fragrances.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with unique thermal or mechanical properties.
• Academic & Industrial R&D: Employed in methodological studies and as a model compound for developing new synthetic transformations involving strained ring systems.

Basic Information

Item	Details
Product Name	Spiro[5.5]Undec-1-En-3-One
CAS No.	30834-42-5
Molecular Formula	C11H16O
Molecular Weight	164.24 g/mol
Synonyms	Spiro[5.5]undec-1-en-3-one; 1-Spiro[5.5]undecen-3-one; 3-Spiro[5.5]undecen-1-one; Spiro(5.5)undec-1-en-3-one; Bicyclo[3.3.1]nonane-9-spirocyclopentan-1'-en-3'-one
EINECS	Contact for details

Quality Control

Our Spiro[5.5]Undec-1-En-3-One is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopic methods, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.