3,9-Divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane

3,9-Divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane
Names
	Preferred IUPAC name 3,9-Diethenyl-2,4,8,10-tetraoxaspiro[5.5]undecane
Identifiers
CAS Number	78-19-3;
3D model (JSmol)	Interactive image;
ChemSpider	59603;
ECHA InfoCard	100.000.994
EC Number	201-092-7;
PubChem CID	66218;
UNII	4H20E9P087;
CompTox Dashboard (EPA)	DTXSID20871552 ;
	InChI InChI=1S/C11H16O4/c1-3-9-12-5-11(6-13-9)7-14-10(4-2)15-8-11/h3-4,9-10H,1-2,5-8H2 Key: OOXMQACSWCZQLX-UHFFFAOYSA-N;
	SMILES C=CC1OCC2(CO1)COC(OC2)C=C;
Properties
Chemical formula	C11H16O4
Molar mass	212.24 g·mol−1
Appearance	crystalline solid
Melting point	43–46°C
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

3,9-Divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane (DVTOSU) is a bicyclic organic molecule having a central quaternary carbon atom (a spiro atom) with which two alicyclic rings are linked, each comprising five atoms. DVTOSU is a diallyl acetal and the precursor for the isomeric ketene acetal monomer 3,9-diethylidene-2,4,8,10-tetraoxaspiro[5.5]undecane (DETOSU) which is a building block for polyorthoesters.