Description

1,3-Dioxaspiro[4.6]Undecane (9Ci) is a specialized spirocyclic acetal compound, identified by CAS NO 179729-98-7, valued for its unique bicyclic structure that serves as a versatile building block and protecting group in advanced organic synthesis. This compound matters for its ability to impart specific stereochemical and functional properties in complex molecular architectures. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon or protecting group in the multi-step synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators requiring specific stereochemistry.
• Fragrance & Flavor Chemistry: Serves as a precursor for the creation of unique musk-like or complex cyclic odorant molecules.
• Material Science Research: Employed as a monomer or cross-linking agent in the development of novel polymers with specialized acetal functionalities.
• Academic & R&D Laboratories: A valuable reagent for methodological studies in organic chemistry, particularly in reactions involving acetal formation and spirocyclic systems.
• Fine Chemical Production: Used in the custom synthesis of high-value, low-volume specialty chemicals for various industrial applications.

Basic Information

Product Name	1,3-Dioxaspiro[4.6]Undecane (9Ci)
CAS No.	179729-98-7
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	1,3-Dioxaspiro[4.6]undecane; Spiro[1,3-dioxane-2,1'-cyclohexane]; 2,2-Pentamethylene-1,3-dioxane; 1,3-Dioxaspiro(4.6)undecane; Cyclohexane, 1,1-(1,3-dioxane-2,2-diyl)bis-; 9CI Index Name
EINECS	Contact for details

Quality Control

Our 1,3-Dioxaspiro[4.6]Undecane (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its nature as a strong acid/organic solvent and highly volatile compound, keep away from heat, sparks, and open flame. Ensure containers are kept tightly sealed when not in use to prevent evaporation and minimize exposure to moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.460
Density (g/mL at 20°C)	1.00 - 1.05

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