Description

Spiro[5.5]Undecan-1-One, 7-Ethyl-11-Methyl- (9Ci) is a high-purity, specialized spirocyclic ketone compound. It serves as a critical advanced intermediate in the synthesis of complex organic molecules, valued for its unique three-dimensional structure. This compound is primarily required by pharmaceutical R&D and fine chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the research and synthesis of new drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Synthesis: Used in the development of novel, high-performance active ingredients for crop protection products.
• Fragrance & Flavor Chemistry: Serves as a precursor for creating unique musk-like or woody odorants due to its complex spirocyclic backbone.
• Material Science Research: Investigated as a monomer or additive for producing polymers with specific thermal or mechanical properties.
• Organic Synthesis Research: A valuable scaffold in academic and industrial laboratories for methodology development and exploring new chemical spaces.
• Ligand & Catalyst Development: Potential use in constructing sophisticated chiral ligands for asymmetric catalysis.

Basic Information

Product Name	Spiro[5.5]Undecan-1-One, 7-Ethyl-11-Methyl- (9Ci)
CAS No.	678981-55-0
Molecular Formula	C₁₄H₂₄O
Molecular Weight	208.34 g/mol
Synonyms	7-Ethyl-11-methylspiro[5.5]undecan-1-one; 7-Ethyl-11-methylspiro[5.5]undecane-1-one; Spiro[5.5]undecan-1-one, 7-ethyl-11-methyl-; 678981-55-0; 7-Ethyl-11-methyl-spiro[5.5]undecan-1-one; 1-Oxaspiro[5.5]undecane, 7-ethyl-11-methyl- (related structure); Ethylmethylspiro[5.5]undecanone
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Production follows current Good Manufacturing Practices (cGMP) where applicable, and each batch is analyzed to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to ensure traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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