1 DEI (2z)-2-hydroxy-3-(methylsulfanyl)prop-2-enoic acid 1.000 2 A8C 3-(methylsulfanyl)propanoic acid 0.875 3 R67 3-(methylsulfonyl)-2-oxopropanoic acid 0.800 4 060 S-methyl-D-cysteine 0.778 5 DQY 3-(dimethyl-lambda~4~-sulfanyl)propanoic acid 0.778 6 SMC S-methylcysteine 0.778 7 2OP (2s)-2-hydroxypropanoic acid 0.750 8 LAC Lactic acid 0.750 9 MPT Beta-mercaptopropionic acid 0.750 10 PYR Pyruvic acid 0.750 11 SGM Monothioglycerol 0.750 12 XYM (2z)-3-[(carboxymethyl)sulfanyl]-2-hydroxyprop-2-enoic acid 0.727 13 XYN 3-[(carboxymethyl)sulfanyl]-2-oxopropanoic acid 0.727 14 ECX S-ethyl-L-cysteine 0.700 15 LNI 3-[dimethyl(oxidanyl)-$L^{4}-sulfanyl]propanoic acid 0.700 16 M0H S-(hydroxymethyl)-L-cysteine 0.700 17 N2C N,S-dimethylcysteine 0.700 18 XCN S-cyano-L-cysteine 0.700