1	YG	Wybutosine	1.000
2	YYG	4-(3-[5-O-phosphonoribofuranosyl]-4,6-dimethyl-8-oxo-4,8-dihydro-3h-1,3,4,5,7a-pentaaza-S-indacen-ylamino-butyric acid methyl ester	1.000