The name/synonym for ligand CEX (curated from ChEBI, PubChem, and PDB databases):

1ALPHA-MALTOPENTAOSE
2ALPHA-D-GLUCOPYRANOSYL-(1->4)-ALPHA-D-GLUCOPYRANOSYL-(1->4)-ALPHA-D-GLUCOPYRANOSYL-(1->4)-ALPHA-D-GLUCOPYRANOSYL-(1->4)-ALPHA-D-GLUCOPYRANOSE
3ALPHA-D-GLCP-(1->4)-ALPHA-D-GLCP-(1->4)-ALPHA-D-GLCP-(1->4)-ALPHA-D-GLCP-(1->4)-ALPHA-D-GLCP
4MALTOPENTAOSE