preferred_name: chitosan + n acetate => [(1->4)-N-acetyl-beta-D-glucosaminyl](n) + n H2O
preferred_name_lc: chitosan + n acetate => [(1->4)-n-acetyl-beta-d-glucosaminyl](n) + n h2o
label: chitosan + n acetate => [(1->4)-N-acetyl-beta-D-glucosaminyl](n) + n H2O
label_lc: chitosan + n acetate => [(1->4)-n-acetyl-beta-d-glucosaminyl](n) + n h2o