preferred_name: N,N'-diacetylchitobiose(out) => N,N'-diacetylchitobiose(in)
preferred_name_lc: n,n'-diacetylchitobiose(out) => n,n'-diacetylchitobiose(in)
label: N,N'-diacetylchitobiose(out) => N,N'-diacetylchitobiose(in)
label_lc: n,n'-diacetylchitobiose(out) => n,n'-diacetylchitobiose(in)