1	PSO	4'-hydroxymethyl-4,5',8-trimethylpsoralen	1.000
2	6ZE	2,3,5-trimethyl-6-propyl-7h-furo[3,2-G][1]benzopyran-7-one	0.773
3	8B6	4-oxidanylfuro[3,2-G]chromen-7-one	0.700