preferred_name: 4-deoxy-L-threo-hex-4-enopyranuronate + L-rhamnopyranose => alpha-L-rhamnosyl-(1->4)-D-glucuronate
preferred_name_lc: 4-deoxy-l-threo-hex-4-enopyranuronate + l-rhamnopyranose => alpha-l-rhamnosyl-(1->4)-d-glucuronate
label: 4-deoxy-L-threo-hex-4-enopyranuronate + L-rhamnopyranose => alpha-L-rhamnosyl-(1->4)-D-glucuronate
label_lc: 4-deoxy-l-threo-hex-4-enopyranuronate + l-rhamnopyranose => alpha-l-rhamnosyl-(1->4)-d-glucuronate