D-cellobiose <=> beta-D-glucosyl-(1->4)-D-mannopyranose
d-cellobiose <=> beta-d-glucosyl-(1->4)-d-mannopyranose
D-cellobiose <=> beta-D-glucosyl-(1->4)-D-mannopyranose
d-cellobiose <=> beta-d-glucosyl-(1->4)-d-mannopyranose