1	1KM	(2r)-2-azanyl-3-[(1r,2s)-2-oxidanyl-1-phosphono-propyl]sulfanyl-propanoic acid	1.000
2	CYQ	2-amino-3-phosphonomethylsulfanyl-propionic acid	0.800
3	CSA	S-acetonylcysteine	0.733