cysteine,methylthio,methyl
Cysteine
90700-96-2L-Cysteine,L-arginyl-L-lysyl-L-alanyl-L-a-aspartyl-L-leucyl-L-a-glutamyl-L-lysyl-L-alanyl-L-leucyl-L-a-glutamyl-L-lysyl-L-alanyl-L-methionyl-
121442-69-1N-acetyl-S-{5-amino-3-oxo-2-[3-(trifluoromethyl)phenyl]-2,3-dihydropyridazin-4-yl}-L-cysteine