Description

1,7-Dioxaspiro[5.5]Undecane is a high-purity, cyclic acetal compound with a unique spirocyclic structure, serving as a versatile chemical intermediate and fragrance ingredient. Its value lies in its ability to impart specific olfactory characteristics and act as a building block for more complex molecules in fine chemical synthesis. This product is essential for manufacturers in the fragrance and flavor, pharmaceutical, and specialty chemical industries seeking reliable, high-quality raw materials for their formulations.

Application

• Fragrance & Flavor Industry: Used as a key fragrance component and fixative in perfumes, cosmetics, and personal care products for its woody, ambergris-like, and musky notes.
• Chemical Synthesis: Serves as a crucial intermediate or protecting group in the synthesis of complex organic molecules, including pharmaceuticals and agrochemicals.
• Research & Development: Employed in academic and industrial R&D labs as a standard or starting material for studying spirocyclic compounds and acetal chemistry.
• Specialty Chemicals: Utilized in the formulation of advanced materials, where its specific structure can influence polymer properties or act as a specialty solvent.

Basic Information

Product Name	1,7-Dioxaspiro[5.5]Undecane
CAS No.	180-84-7
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	1,7-Dioxaspiro(5.5)undecane; Spiro[1,3-dioxane-2,2'-bicyclo[3.3.1]nonane]; 2,2-Pentamethylene-1,3-dioxane; FEMA 4458; (1,3-Dioxan-2-ylidene)cyclohexane
EINECS	205-896-7

Quality Control

Our 1,7-Dioxaspiro[5.5]Undecane is manufactured under a strict quality management system. Each batch is subjected to rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency meet the highest standards. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee full traceability and compliance for your quality assurance processes.

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 away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.465 - 1.475
Specific Gravity (20/20°C)	1.010 - 1.030

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