1	YCM	S-(2-amino-2-oxoethyl)-L-cysteine	1.000
2	OCY	Hydroxyethylcysteine	0.909
3	SLZ	L-thialysine	0.909
4	SWW	(2~{S})-2-azanyl-3-(2-hydroxyethylsulfanyl)propanoic acid	0.909
5	CCS	Carboxymethylated cysteine	0.833
6	CSA	S-acetonylcysteine	0.833
7	ECX	S-ethyl-L-cysteine	0.818
8	CGV	S-[(R)-carboxy(hydroxy)methyl]-L-cysteine	0.769
9	CYW	S-[(2r)-2-hydroxypropanoyl]-L-cysteine	0.769
10	P9S	Dihydroxypropylcysteine	0.769
11	I3L	Allyl-cysteine	0.750
12	SCY	S-acetyl-cysteine	0.750
13	060	S-methyl-D-cysteine	0.727
14	SMC	S-methylcysteine	0.727
15	85F	(2r)-2-azanyl-3-[(2r)-2-azanyl-3-oxidanyl-3-oxidanylidene-propyl]sulfanyl-propanoic acid	0.714