preferred_name: 2 5-dehydro-4-deoxy-D-glucuronate => 4-(4-deoxy-alpha-D-galact-4-enuronosyl)-D-galacturonate
preferred_name_lc: 2 5-dehydro-4-deoxy-d-glucuronate => 4-(4-deoxy-alpha-d-galact-4-enuronosyl)-d-galacturonate
label: 2 5-dehydro-4-deoxy-D-glucuronate => 4-(4-deoxy-alpha-D-galact-4-enuronosyl)-D-galacturonate
label_lc: 2 5-dehydro-4-deoxy-d-glucuronate => 4-(4-deoxy-alpha-d-galact-4-enuronosyl)-d-galacturonate