preferred_name: Leu-enkephalin + H2O = L-tyrosylglycylglycine + L-phenylalanyl-L-leucine
preferred_name_lc: leu-enkephalin + h2o = l-tyrosylglycylglycine + l-phenylalanyl-l-leucine
label: Leu-enkephalin + H2O = L-tyrosylglycylglycine + L-phenylalanyl-L-leucine
label_lc: leu-enkephalin + h2o = l-tyrosylglycylglycine + l-phenylalanyl-l-leucine