1	XYM	(2z)-3-[(carboxymethyl)sulfanyl]-2-hydroxyprop-2-enoic acid	1.000
2	XYN	3-[(carboxymethyl)sulfanyl]-2-oxopropanoic acid	1.000
3	CCJ	Carboxymthylated D- cysteine	0.833
4	CCS	Carboxymethylated cysteine	0.833
5	CGV	S-[(R)-carboxy(hydroxy)methyl]-L-cysteine	0.769
6	OCY	Hydroxyethylcysteine	0.750
7	SWW	(2~{S})-2-azanyl-3-(2-hydroxyethylsulfanyl)propanoic acid	0.750
8	DEI	(2z)-2-hydroxy-3-(methylsulfanyl)prop-2-enoic acid	0.727
9	X79	(prop-2-ynylthio)acetic acid	0.727
10	X7Q	(allylthio)acetic acid	0.727