theanine,serine,histidine,glutamine
Histidine
501412-75-5L-Histidine,L-glutaminyl-L-glutaminyl-L-arginyl-L-leucyl-L-histidyl-L-a-aspartyl-L-seryl-L-glutaminyl-
620927-23-3L-Histidine,L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-L-histidyl-