1	CML	(2s)-2-{[(2r)-2-amino-2-carboxyethyl]sulfanyl}butanedioic acid	1.000
2	QVA	(2s,3r)-2-{[(2r)-2-amino-2-carboxyethyl]sulfanyl}-3-hydroxybutanedioic acid	0.938
3	85F	(2r)-2-azanyl-3-[(2r)-2-azanyl-3-oxidanyl-3-oxidanylidene-propyl]sulfanyl-propanoic acid	0.750
4	MCS	Malonyl cysteine	0.750
5	CCJ	Carboxymthylated D- cysteine	0.733
6	CCS	Carboxymethylated cysteine	0.733
7	EJA	S-[(1z)-2-carboxy-N-hydroxyethanimidoyl]-L-cysteine	0.706