1	XDS	(5s)-5-(dioxidanyl)-9-methyl-7h-purine-2,6,8-trione	1.000
2	IUP	5-(hydro)peroxoisourate	0.933
3	MUA	9-methyl uric acid	0.867
4	8HX	8-hydroxy-3,9-dihydro-1h-purine-2,6-dione	0.800
5	URC	Uric acid	0.800
6	XAN	Xanthine	0.733