Peroxyacetyl nitrate
= Peroxyacetyl nitrate
{title2=$\mathrm{CH_3C(O)OONO_2}$}
= PAN
{disambiguate=chemistry}
{c}
{synonym}
An organic nitrogen reservoir formed by association of a peroxyacetyl radical with nitrogen dioxide. Thermal dissociation can release reactive nitrogen again; its temperature sensitivity helps distinguish transport through cool air from rapid recycling in warmer air.