6HAA:
reference: Synthesis and application of a highly branched, mechanism-based 2-deoxy-2-fluoro-oligosaccharide inhibitor of endo-xyloglucanases., Jain N, Attia MA, Offen WA, Davies GJ, Brumer H, Org Biomol Chem. 2018 Nov 21;16(45):8732-8741. doi: 10.1039/c8ob02250j. PMID: 30387796

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).