1	F04	2-ethyl-4-methyl-phthalazin-1-one	1.000
2	81X	4-(aminomethyl)phthalazin-1(2h)-one	0.800
3	495	4-chlorophthalazin-1(2h)-one	0.733
4	MT0	1-chloro-4-methylphthalazine	0.733
5	4FT	Phthalazine	0.714
6	5OF	2-(4-oxidanylidene-3~{H}-phthalazin-1-yl)ethanoic acid	0.706