Chlorine peroxide

Chlorine peroxide
Names
	IUPAC name Chlorine peroxide
	Systematic IUPAC name Chlorooxy hypochlorite
	Other names ClO dimer
Identifiers
CAS Number	12292-23-8;
3D model (JSmol)	Interactive image;
ChemSpider	109895;
PubChem CID	123287;
CompTox Dashboard (EPA)	DTXSID001310193 ;
	InChI InChI=1S/Cl2O2/c1-3-4-2 Key: MAYPHUUCLRDEAZ-UHFFFAOYSA-N; InChI=1/Cl2O2/c1-3-4-2 Key: MAYPHUUCLRDEAZ-UHFFFAOYAP;
	SMILES ClOOCl;
Properties
Chemical formula	Cl2O2
Molar mass	102.905 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chlorine peroxide (also known as dichlorine dioxide or ClO dimer) is a molecular compound with formula ClOOCl. Chemically, it is a dimer of the chlorine monoxide radical (ClO·). It is important in the formation of the ozone hole. Chlorine peroxide catalytically converts ozone into oxygen when it is irradiated by ultraviolet light.