1	SLZ	L-thialysine	1.000
2	YCM	S-(2-amino-2-oxoethyl)-L-cysteine	0.909
3	ECX	S-ethyl-L-cysteine	0.900
4	I3L	Allyl-cysteine	0.818
5	OCY	Hydroxyethylcysteine	0.818
6	SCY	S-acetyl-cysteine	0.818
7	SWW	(2~{S})-2-azanyl-3-(2-hydroxyethylsulfanyl)propanoic acid	0.818
8	060	S-methyl-D-cysteine	0.800
9	SMC	S-methylcysteine	0.800
10	85F	(2r)-2-azanyl-3-[(2r)-2-azanyl-3-oxidanyl-3-oxidanylidene-propyl]sulfanyl-propanoic acid	0.769
11	6KM	S-propanoyl-L-cysteine	0.750
12	CCS	Carboxymethylated cysteine	0.750
13	CSA	S-acetonylcysteine	0.750
14	M0H	S-(hydroxymethyl)-L-cysteine	0.727
15	XCN	S-cyano-L-cysteine	0.727
16	A8C	3-(methylsulfanyl)propanoic acid	0.700
17	BB9	(2z)-2-amino-3-sulfanylprop-2-enoic acid	0.700
18	CYS	Cysteine	0.700
19	DCY	D-cysteine	0.700