Description

1,11-Dimethyl-5,9-Bis(Methylene)Spiro[5.5]Undecane is a specialized spirocyclic hydrocarbon compound valued for its unique molecular architecture. This structure makes it a versatile and high-value intermediate in advanced organic synthesis, particularly for creating complex fragrance molecules and functional materials. It is primarily sought after by R&D chemists and production specialists in the fine chemicals, fragrance, and specialty polymer industries.

Application

• Fragrance and Flavor Intermediate: A key building block for the synthesis of novel, high-impact amber, woody, and musky odorants.
• Fine Chemical Synthesis: Serves as a crucial spirocyclic scaffold in pharmaceutical research and the development of complex organic molecules.
• Specialty Polymer Research: Used as a monomer or cross-linking agent to impart unique rigidity and thermal properties to advanced polymeric materials.
• Agrochemical Intermediates: Employed in the research and development of new active ingredients with specific structural motifs.
• Material Science: Investigated for use in liquid crystals, organic semiconductors, and other functional materials due to its rigid, three-dimensional shape.

Basic Information

Item	Details
Product Name	1,11-Dimethyl-5,9-Bis(Methylene)Spiro[5.5]Undecane
CAS No.	25146-25-2
Molecular Formula	C15H24
Molecular Weight	204.35 g/mol
Synonyms	Spiro[5.5]undecane, 1,11-dimethyl-5,9-bis(methylene)-; 1,11-Dimethyl-5,9-dimethylene-spiro[5.5]undecane; Spirocyclic C15 hydrocarbon; Amberwood; Amberwood™ (trade name variant); Dimethylbis(methylene)spiro[5.5]undecane
EINECS	Contact for details

Quality Control

Every batch of 1,11-Dimethyl-5,9-Bis(Methylene)Spiro[5.5]Undecane is produced and verified under a strict quality management system. We employ advanced analytical techniques including GC, GC-MS, and NMR to ensure identity, purity, and consistency meet the exacting standards required for synthesis and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and chromatographic data is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and potential concentration changes. Recommended storage temperature: 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Related Substances (GC)	Total impurities ≤ 5.0%
Refractive Index (20°C)	Contact for details
Specific Gravity (20°C)	Contact for details

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