Amino acids
2. L-arginine }
L-cystine }
L-histidine } and their hydrochlorides
L-isoleucine }
L-leucine }
L-lysine }
L-cysteine }
L-methionine
L-phenylalanine
L-threonine
L-tryptophan
L-tyrosine
L-valine
2. L-arginine }
L-cystine }
L-histidine } and their hydrochlorides
L-isoleucine }
L-leucine }
L-lysine }
L-cysteine }
L-methionine
L-phenylalanine
L-threonine
L-tryptophan
L-tyrosine
L-valine