1	CVG	6-methylpyridazin-3-ol	1.000
2	W3G	Pyridazin-3(2h)-one	0.875
3	UW6	5-methylpyridazin-3(2h)-one	0.778
4	V8Q	6-methyl-5-sulfanylidene-2h-1,2,4-triazin-3-one	0.700