1	JPP	Piperacillin (open form)	1.000
2	VPP	(2s,4s)-2-[(R)-carboxy{[(2r)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid	0.973
3	YPP	Hydrolyzed piperacillin	0.973
4	59F	(2r,4r,5r)-2-[(1r)-1-{[(2r)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-(4-hydroxyphenyl)acetyl]amino}-2-oxoethyl]-5-methyl-1,3-thiazinane-4-carboxylic acid	0.872
5	59J	(2r,5r)-2-[(R)-carboxy{[(2r)-2-{[(4-ethyl-2,3-dioxopiperazin-1-yl)carbonyl]amino}-2-(4-hydroxyphenyl)acetyl]amino}methyl]-5-methyl-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid	0.850
6	59H	(2r,4s)-5,5-dimethyl-2-[(1r)-2-oxo-1-{[(2r)-2-{[(2-oxoimidazolidin-1-yl)carbonyl]amino}-2-phenylacetyl]amino}ethyl]-1,3-thiazolidine-4-carboxylic acid	0.838