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