Description

3,9-Dimethyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane is a high-purity spirocyclic acetal compound, valued for its role as a versatile chemical intermediate and specialty additive. Its unique molecular structure provides excellent stability and reactivity, making it a critical component in advanced material synthesis. This product is essential for manufacturers in the polymer, pharmaceutical, and fine chemical industries seeking reliable, high-quality building blocks for their processes.

Application

• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty resins, adhesives, and coatings, imparting enhanced thermal and chemical resistance.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), leveraging its spirocyclic framework.
• Fine Chemical Synthesis: Utilized as a protected form of carbonyl groups or as a scaffold in the production of fragrances, flavors, and other high-value specialty chemicals.
• Material Science: Incorporated into advanced polymeric materials to modify physical properties such as glass transition temperature, flexibility, and durability.
• Research & Development: Employed in academic and industrial R&D for exploring new synthetic pathways and novel material properties.

Basic Information

Product Name	3,9-Dimethyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane
CAS No.	773-41-1
Molecular Formula	C9H16O4
Molecular Weight	188.22 g/mol
Synonyms	3,9-Dimethyl-1,5,7,11-tetraoxaspiro[5.5]undecane; 2,4,8,10-Tetraoxaspiro[5.5]undecane, 3,9-dimethyl-; Spiroglycol; Acetaldehyde, cyclic dimer with pentaerythritol; Pentaerythritol acetaldehyde cyclic dimer; NSC 403697; 1,5,7,11-Tetraoxaspiro[5.5]undecane, 3,9-dimethyl-
EINECS	212-254-6

Quality Control

Our 3,9-Dimethyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets the highest standards of purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	86 - 90 °C
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.