Description

3,9-Divinyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane is a specialized spirocyclic acetal monomer, also known by its CAS number 78-19-3. This compound is valued for its unique bifunctional vinyl structure, which serves as a versatile reactive site for polymerization and cross-linking reactions. It is primarily sought by manufacturers in the polymer, coatings, and specialty chemical industries for developing advanced materials with enhanced thermal stability and mechanical properties.

Application

• Cross-linking Agent for thermosetting resins and high-performance polymers.
• Monomer for synthesizing specialty polyacetals and spirocyclic polymers.
• Reactive Diluent in radiation-curable coatings, inks, and adhesives.
• Intermediate in the production of fine chemicals and pharmaceutical precursors.
• Modifier for improving the thermal and chemical resistance of engineering plastics.
• Component in the formulation of advanced composite materials.

Basic Information

Product Name	3,9-Divinyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane
CAS No.	78-19-3
Molecular Formula	C11H16O4
Molecular Weight	212.24 g/mol
Synonyms	Divinyl Spiroacetal; 3,9-Divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane; Spiroacetal Divinyl Ether; DVS; Divinyl Spiro Compound; 2,4,8,10-Tetraoxaspiro[5.5]undecane, 3,9-divinyl-; 78-19-3; Divinyl Tetraoxaspiro Compound
EINECS	201-090-5

Quality Control

Our 3,9-Divinyl-2,4,8,10-Tetraoxaspiro[5.5]Undecane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining under an inert gas atmosphere such as nitrogen or argon.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.460 - 1.470
Density (20°C)	1.10 - 1.15 g/mL

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